diff --git a/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepository.kt b/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepository.kt
index d9496e04..9f54bb6e 100644
--- a/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepository.kt
+++ b/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepository.kt
@@ -7,6 +7,7 @@ interface EventRepository {
     suspend fun getMonthEvents(date: LocalDate): Result<List<Event>>
 
     suspend fun postEvent(
+        date: LocalDate,
         eventTitle: String,
         eventContent: String,
         eventLocation: String,
diff --git a/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepositoryImpl.kt b/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepositoryImpl.kt
index 49acb09b..024d5e2b 100644
--- a/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepositoryImpl.kt
+++ b/core/data/src/main/java/com/wap/wapp/core/data/repository/event/EventRepositoryImpl.kt
@@ -1,6 +1,7 @@
 package com.wap.wapp.core.data.repository.event
 
 import com.wap.wapp.core.model.event.Event
+import com.wap.wapp.core.network.model.event.EventRequest
 import com.wap.wapp.core.network.source.event.EventDataSource
 import java.time.LocalDate
 import javax.inject.Inject
@@ -16,12 +17,21 @@ class EventRepositoryImpl @Inject constructor(
         }
 
     override suspend fun postEvent(
+        date: LocalDate,
         eventTitle: String,
         eventContent: String,
         eventLocation: String,
         eventDate: String,
         eventTime: String,
-    ): Result<Unit> {
-        TODO("Not yet implemented")
-    }
+    ): Result<Unit> =
+        eventDataSource.postEvent(
+            date = date,
+            EventRequest(
+                title = eventTitle,
+                content = eventContent,
+                location = eventLocation,
+                date = eventDate,
+                time = eventTime,
+            ),
+        )
 }
diff --git a/core/domain/src/main/java/com/wap/wapp/core/domain/usecase/event/PostEventUseCase.kt b/core/domain/src/main/java/com/wap/wapp/core/domain/usecase/event/PostEventUseCase.kt
index 7e573841..85741211 100644
--- a/core/domain/src/main/java/com/wap/wapp/core/domain/usecase/event/PostEventUseCase.kt
+++ b/core/domain/src/main/java/com/wap/wapp/core/domain/usecase/event/PostEventUseCase.kt
@@ -1,12 +1,14 @@
 package com.wap.wapp.core.domain.usecase.event
 
 import com.wap.wapp.core.data.repository.event.EventRepository
+import java.time.LocalDate
 import javax.inject.Inject
 
 class PostEventUseCase @Inject constructor(
     private val eventRepository: EventRepository,
 ) {
     suspend operator fun invoke(
+        date: LocalDate,
         eventTitle: String,
         eventContent: String,
         eventLocation: String,
@@ -14,6 +16,7 @@ class PostEventUseCase @Inject constructor(
         eventTime: String,
     ): Result<Unit> = runCatching {
         eventRepository.postEvent(
+            date = date,
             eventTitle = eventTitle,
             eventContent = eventContent,
             eventLocation = eventLocation,
diff --git a/core/network/src/main/java/com/wap/wapp/core/network/source/event/EventDataSourceImpl.kt b/core/network/src/main/java/com/wap/wapp/core/network/source/event/EventDataSourceImpl.kt
index c0d57e0b..a0c923ac 100644
--- a/core/network/src/main/java/com/wap/wapp/core/network/source/event/EventDataSourceImpl.kt
+++ b/core/network/src/main/java/com/wap/wapp/core/network/source/event/EventDataSourceImpl.kt
@@ -37,7 +37,7 @@ class EventDataSourceImpl @Inject constructor(
             firebaseFirestore.collection(EVENT_COLLECTION)
                 .document(getMonth(date))
                 .collection(EVENT_COLLECTION)
-                .document()
+                .document("0")
                 .set(eventRequest)
                 .await()
         }
diff --git a/feature/management/src/main/java/com/wap/wapp/feature/management/registration/event/EventRegistrationViewModel.kt b/feature/management/src/main/java/com/wap/wapp/feature/management/registration/event/EventRegistrationViewModel.kt
index f5f0bee3..e7373c80 100644
--- a/feature/management/src/main/java/com/wap/wapp/feature/management/registration/event/EventRegistrationViewModel.kt
+++ b/feature/management/src/main/java/com/wap/wapp/feature/management/registration/event/EventRegistrationViewModel.kt
@@ -1,13 +1,19 @@
 package com.wap.wapp.feature.management.registration.event
 
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.wap.wapp.core.commmon.util.DateUtil.generateNowDate
+import com.wap.wapp.core.domain.usecase.event.PostEventUseCase
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
-class EventRegistrationViewModel @Inject constructor() : ViewModel() {
+class EventRegistrationViewModel @Inject constructor(
+    private val postEventUseCase: PostEventUseCase,
+) : ViewModel() {
     private val _currentRegistrationState: MutableStateFlow<EventRegistrationState> =
         MutableStateFlow(EventRegistrationState.EVENT_DETAILS)
     val currentRegistrationState = _currentRegistrationState.asStateFlow()
@@ -51,5 +57,15 @@ class EventRegistrationViewModel @Inject constructor() : ViewModel() {
         _currentRegistrationState.value = eventRegistrationState
     }
 
-    fun registerEvent() {}
+    fun registerEvent() =
+        viewModelScope.launch {
+            postEventUseCase(
+                date = generateNowDate(),
+                eventTitle = _eventTitle.value,
+                eventContent = _eventContent.value,
+                eventLocation = _eventLocation.value,
+                eventDate = _eventDate.value,
+                eventTime = _eventTime.value,
+            )
+        }
 }