diff --git a/app/Form/Actions/ParticipantAssignAction.php b/app/Form/Actions/ParticipantAssignAction.php
new file mode 100644
index 00000000..a0a4c34f
--- /dev/null
+++ b/app/Form/Actions/ParticipantAssignAction.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Form\Actions;
+
+use App\Form\Models\Participant;
+use Lorisleiva\Actions\ActionRequest;
+use Lorisleiva\Actions\Concerns\AsAction;
+
+class ParticipantAssignAction
+{
+    use AsAction;
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function rules(): array
+    {
+        return [
+            'member_id' => 'required|exists:members,id',
+        ];
+    }
+
+    public function handle(Participant $participant, ActionRequest $request): void
+    {
+        $participant->update(['member_id' => $request->input('member_id')]);
+    }
+}
diff --git a/app/Form/Resources/ParticipantResource.php b/app/Form/Resources/ParticipantResource.php
index b5029e62..36c65dd6 100644
--- a/app/Form/Resources/ParticipantResource.php
+++ b/app/Form/Resources/ParticipantResource.php
@@ -27,7 +27,9 @@ class ParticipantResource extends JsonResource
             'created_at' => $this->created_at->format('Y-m-d H:i:s'),
             'created_at_display' => $this->created_at->format('d.m.Y'),
             'children_count' => $this->children_count,
+            'member_id' => $this->member_id,
             'links' => [
+                'assign' => route('participant.assign', ['participant' => $this->getModel()]),
                 'destroy' => route('participant.destroy', ['participant' => $this->getModel()]),
                 'children' => route('form.participant.index', ['form' => $this->form, 'parent' => $this->id])
             ]
diff --git a/resources/img/svg/warning-triangle.svg b/resources/img/svg/warning-triangle.svg
new file mode 100644
index 00000000..ff4566ba
--- /dev/null
+++ b/resources/img/svg/warning-triangle.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" style="enable-background:new 0 0 512 512" xml:space="preserve"><path d="M501.362 383.95 320.497 51.474c-29.059-48.921-99.896-48.986-128.994 0L10.647 383.95c-29.706 49.989 6.259 113.291 64.482 113.291h361.736c58.174 0 94.203-63.251 64.497-113.291zM256 437.241c-16.538 0-30-13.462-30-30s13.462-30 30-30 30 13.462 30 30-13.462 30-30 30zm30-120c0 16.538-13.462 30-30 30s-30-13.462-30-30v-150c0-16.538 13.462-30 30-30s30 13.462 30 30v150z" fill="currentColor" /></svg>
diff --git a/resources/js/views/form/MemberAssign.vue b/resources/js/views/form/MemberAssign.vue
new file mode 100644
index 00000000..7191793f
--- /dev/null
+++ b/resources/js/views/form/MemberAssign.vue
@@ -0,0 +1,46 @@
+<template>
+    <div>
+        <div class="mt-4">
+            <f-text id="search_string" v-model="searchString" label="Mitglied finden"></f-text>
+        </div>
+        <div v-if="results !== null" class="mt-5 sm:mt-10 space-y-2">
+            <a v-for="member in results.hits" :key="member.id" href="#" @click.prevent="emit('assign', member.id)">
+                <div class="flex items-center justify-between hover:bg-sky-600/20 transition text-sky-300 px-3 sm:px-6 py-1 sm:py-3 rounded-lg">
+                    <div class="flex space-x-2 items-center">
+                        <div class="w-5 sm:w-16 flex flex-none">
+                            <ui-age-groups icon-class="w-4 h-4 sm:w-6 sm:h-6" class="flex-col sm:flex-row" :member="member"></ui-age-groups>
+                        </div>
+                        <div class="flex items-baseline flex-col md:flex-row">
+                            <span class="text-lg" v-text="member.fullname"></span>
+                            <span class="ml-2 text-xs" v-text="member.group_name"></span>
+                        </div>
+                    </div>
+                </div>
+            </a>
+        </div>
+    </div>
+</template>
+
+<script setup>
+import {computed, ref} from 'vue';
+import useSearch from '../../composables/useSearch.js';
+const emit = defineEmits(['assign']);
+
+const {search} = useSearch();
+
+const realSearchString = ref('');
+const results = ref(null);
+
+const searchString = computed({
+    get: () => realSearchString.value,
+    set: async (v) => {
+        realSearchString.value = v;
+
+        if (!v.length) {
+            results.value = null;
+            return;
+        }
+        results.value = await search(v, [], {limit: 10});
+    },
+});
+</script>
diff --git a/resources/js/views/form/Participants.vue b/resources/js/views/form/Participants.vue
index 8b04d665..4d5eb792 100644
--- a/resources/js/views/form/Participants.vue
+++ b/resources/js/views/form/Participants.vue
@@ -1,5 +1,8 @@
 <template>
     <div class="mt-5">
+        <ui-popup v-if="assigning !== null" heading="Mitglied zuweisen" closeable @close="assigning = null">
+            <member-assign @assign="assign"></member-assign>
+        </ui-popup>
         <ui-popup v-if="deleting !== null" heading="Teilnehmer*in löschen?" @close="deleting = null">
             <div>
                 <p class="mt-4">Den*Die Teilnehmer*in löschen?</p>
@@ -58,15 +61,20 @@
             <template v-for="(participant, index) in data" :key="index">
                 <tr>
                     <td v-for="(column, columnindex) in activeColumns" :key="column.id">
-                        <ui-table-toggle-button
-                            v-if="columnindex === 0 && groupParticipants"
-                            :value="participant"
-                            :text="participant[column.display_attribute]"
-                            :level="0"
-                            :active="isOpen(participant.id)"
-                            @toggle="toggle(participant)"
-                        ></ui-table-toggle-button>
-                        <div v-else v-text="participant[column.display_attribute]"></div>
+                        <div class="flex items-center space-x-2">
+                            <button v-if="columnindex === 0 && participant.member_id === null" v-tooltip="`kein Mitglied zugewiesen. Per Klick zuweisen`" @click.prevent="assigning = participant">
+                                <ui-sprite src="warning-triangle" class="text-yellow-400 w-5 h-5"></ui-sprite>
+                            </button>
+                            <ui-table-toggle-button
+                                v-if="columnindex === 0 && groupParticipants"
+                                :value="participant"
+                                :text="participant[column.display_attribute]"
+                                :level="0"
+                                :active="isOpen(participant.id)"
+                                @toggle="toggle(participant)"
+                            ></ui-table-toggle-button>
+                            <div v-else v-text="participant[column.display_attribute]"></div>
+                        </div>
                     </td>
                     <td>
                         <a v-tooltip="`Bearbeiten`" href="#" class="ml-2 inline-flex btn btn-warning btn-sm" @click.prevent="edit(participant)"><ui-sprite src="pencil"></ui-sprite></a>
@@ -104,10 +112,13 @@
 import {watch, ref, computed} from 'vue';
 import {useApiIndex} from '../../composables/useApiIndex.js';
 import useTableToggle from '../../composables/useTableToggle.js';
+import MemberAssign from './MemberAssign.vue';
 
 const deleting = ref(null);
 const {isOpen, toggle, childrenOf, clearToggle} = useTableToggle({});
 
+const assigning = ref(null);
+
 const props = defineProps({
     url: {
         type: String,
@@ -137,6 +148,12 @@ const groupParticipants = computed({
     },
 });
 
+async function assign(memberId) {
+    await axios.post(assigning.value.links.assign, {member_id: memberId});
+    reload();
+    assigning.value = null;
+}
+
 var {meta, data, reload, reloadPage, axios, remove, toFilterString, url, updateUrl} = useApiIndex(props.hasNamiField ? props.rootUrl : props.url, 'participant');
 
 const activeColumns = computed(() => meta.value.columns.filter((c) => meta.value.form_meta.active_columns.includes(c.id)));
diff --git a/routes/web.php b/routes/web.php
index 7c074007..d5d36ebf 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -36,6 +36,7 @@ use App\Form\Actions\FormtemplateUpdateAction;
 use App\Form\Actions\FormUpdateAction;
 use App\Form\Actions\FormUpdateMetaAction;
 use App\Form\Actions\IsDirtyAction;
+use App\Form\Actions\ParticipantAssignAction;
 use App\Form\Actions\ParticipantDestroyAction;
 use App\Form\Actions\ParticipantIndexAction;
 use App\Initialize\Actions\InitializeAction;
@@ -170,6 +171,7 @@ Route::group(['middleware' => 'auth:web'], function (): void {
     Route::get('/form/{form}/participants/{parent?}', ParticipantIndexAction::class)->name('form.participant.index');
     Route::post('/form/{form}/is-dirty', IsDirtyAction::class)->name('form.is-dirty');
     Route::delete('/participant/{participant}', ParticipantDestroyAction::class)->name('participant.destroy');
+    Route::post('/participant/{participant}/assign', ParticipantAssignAction::class)->name('participant.assign');
 
     // ------------------------------------ fileshare -----------------------------------
     Route::post('/fileshare', FileshareStoreAction::class)->name('fileshare.store');
diff --git a/tests/Feature/Form/ParticipantAssignActionTest.php b/tests/Feature/Form/ParticipantAssignActionTest.php
new file mode 100644
index 00000000..5e127e2a
--- /dev/null
+++ b/tests/Feature/Form/ParticipantAssignActionTest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Tests\Feature\Form;
+
+use App\Form\Models\Form;
+use App\Form\Models\Participant;
+use App\Member\Member;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
+use Tests\TestCase;
+
+class ParticipantAssignActionTest extends TestCase
+{
+
+    use DatabaseTransactions;
+
+    public function testItAssignsAParticipantToAMenber(): void
+    {
+        $this->login()->loginNami();
+        $participant = Participant::factory()->for(Form::factory())->create();
+        $member = Member::factory()->defaults()->create();
+
+        $this->postJson(route('participant.assign', ['participant' => $participant]), ['member_id' => $member->id])->assertOk();
+
+        $this->assertEquals($member->id, $participant->fresh()->member_id);
+    }
+}
diff --git a/tests/Feature/Form/ParticipantIndexActionTest.php b/tests/Feature/Form/ParticipantIndexActionTest.php
index 77133ec1..c4948b54 100644
--- a/tests/Feature/Form/ParticipantIndexActionTest.php
+++ b/tests/Feature/Form/ParticipantIndexActionTest.php
@@ -20,7 +20,7 @@ class ParticipantIndexActionTest extends FormTestCase
         $this->login()->loginNami()->withoutExceptionHandling();
         $group = Group::factory()->innerName('Stamm')->create();
         $form = Form::factory()
-            ->has(Participant::factory()->data(['vorname' => 'Max', 'select' => ['A', 'B'], 'stufe' => 'Pfadfinder', 'test1' => '', 'test2' => '', 'test3' => '', 'birthday' => '1991-04-20', 'bezirk' => $group->id]))
+            ->has(Participant::factory()->state(['member_id' => 55])->data(['vorname' => 'Max', 'select' => ['A', 'B'], 'stufe' => 'Pfadfinder', 'test1' => '', 'test2' => '', 'test3' => '', 'birthday' => '1991-04-20', 'bezirk' => $group->id]))
             ->fields([
                 $this->textField('vorname')->name('Vorname'),
                 $this->checkboxesField('select')->options(['A', 'B', 'C']),
@@ -40,12 +40,14 @@ class ParticipantIndexActionTest extends FormTestCase
             ->assertJsonPath('data.0.vorname_display', 'Max')
             ->assertJsonPath('data.0.stufe', 'Pfadfinder')
             ->assertJsonPath('data.0.bezirk', $group->id)
+            ->assertJsonPath('data.0.member_id', 55)
             ->assertJsonPath('data.0.bezirk_display', 'Stamm')
             ->assertJsonPath('data.0.birthday_display', '20.04.1991')
             ->assertJsonPath('data.0.birthday', '1991-04-20')
             ->assertJsonPath('data.0.select', ['A', 'B'])
             ->assertJsonPath('data.0.select_display', 'A, B')
             ->assertJsonPath('data.0.links.destroy', route('participant.destroy', ['participant' => $form->participants->first()]))
+            ->assertJsonPath('data.0.links.assign', route('participant.assign', ['participant' => $form->participants->first()]))
             ->assertJsonPath('meta.columns.0.name', 'Vorname')
             ->assertJsonPath('meta.columns.0.base_type', class_basename(TextField::class))
             ->assertJsonPath('meta.columns.0.id', 'vorname')