diff --git a/presentation/src/main/java/com/dpm/presentation/login/ui/NicknameInputActivity.kt b/presentation/src/main/java/com/dpm/presentation/login/ui/NicknameInputActivity.kt
index afd027d8..c5fc8ca7 100644
--- a/presentation/src/main/java/com/dpm/presentation/login/ui/NicknameInputActivity.kt
+++ b/presentation/src/main/java/com/dpm/presentation/login/ui/NicknameInputActivity.kt
@@ -24,10 +24,18 @@ class NicknameInputActivity: BaseActivity<FragmentNicknameInputBinding>({
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        initView()
         initClickListener()
         initObserver()
     }
 
+    private fun initView() {
+        binding.etProfileEditNickname.backgroundTintList = getColorStateList(
+            this@NicknameInputActivity,
+            com.depromeet.designsystem.R.color.color_gray_200
+        )
+    }
+
     private fun initClickListener() = with(binding) {
         ivBack.setOnClickListener {
              finish()
@@ -53,7 +61,7 @@ class NicknameInputActivity: BaseActivity<FragmentNicknameInputBinding>({
         etProfileEditNickname.setOnEditorActionListener { v, actionId, event ->
             if (actionId == EditorInfo.IME_ACTION_DONE) {
                 if (etProfileEditNickname.text.isNotEmpty()) {
-                    //Todo : 서버 API 연동 및 닉네임 중복 검사
+                    signUpViewModel.checkDuplicateNickname(etProfileEditNickname.text.toString())
                 }
                 true
             } else {
@@ -66,13 +74,7 @@ class NicknameInputActivity: BaseActivity<FragmentNicknameInputBinding>({
         }
 
         tvNicknameNextBtn.setOnClickListener {
-            //Todo : 서버 API 연동 및 닉네임 중복 검사
-            //임시로 응원하는 팀 선택 화면으로 이동
-            Intent(this@NicknameInputActivity, TeamSelectActivity::class.java).apply {
-                putExtra("nickname", etProfileEditNickname.text.toString())
-                putExtra("kakaoToken", intent.getStringExtra("kakaoToken"))
-                startActivity(this)
-            }
+            signUpViewModel.checkDuplicateNickname(etProfileEditNickname.text.toString())
         }
     }
 
@@ -87,6 +89,13 @@ class NicknameInputActivity: BaseActivity<FragmentNicknameInputBinding>({
                     clNicknameInputWarning.visibility = View.GONE
                     updateButtonEnabled(true)
                 }
+                NicknameInputState.NICKNAME_SUCCESS -> {
+                    Intent(this@NicknameInputActivity, TeamSelectActivity::class.java).apply {
+                        putExtra("nickname", etProfileEditNickname.text.toString())
+                        putExtra("kakaoToken", intent.getStringExtra("kakaoToken"))
+                        startActivity(this)
+                    }
+                }
                 NicknameInputState.INVALID_LENGTH -> {
                     clNicknameInputWarning.visibility = View.VISIBLE
                     tvNicknameWarning.text = getString(R.string.profile_edit_error_length)
diff --git a/presentation/src/main/java/com/dpm/presentation/login/viewmodel/NicknameInputViewModel.kt b/presentation/src/main/java/com/dpm/presentation/login/viewmodel/NicknameInputViewModel.kt
index f89da75a..24b13822 100644
--- a/presentation/src/main/java/com/dpm/presentation/login/viewmodel/NicknameInputViewModel.kt
+++ b/presentation/src/main/java/com/dpm/presentation/login/viewmodel/NicknameInputViewModel.kt
@@ -1,15 +1,18 @@
 package com.dpm.presentation.login.viewmodel
 
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.dpm.domain.repository.HomeRepository
 import com.dpm.presentation.extension.NICKNAME_PATTERN
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
 class NicknameInputViewModel @Inject constructor(
-
+    private val homeRepository: HomeRepository,
 ) : ViewModel() {
 
     private val _nicknameInputState = MutableStateFlow<NicknameInputState>(NicknameInputState.EMPTY)
@@ -27,8 +30,20 @@ class NicknameInputViewModel @Inject constructor(
             !nickname.matches(Regex(NICKNAME_PATTERN)) -> _nicknameInputState.tryEmit(
                 NicknameInputState.INVALID_CHARACTER
             )
-            else -> _nicknameInputState.tryEmit(NicknameInputState.VALID)
+            else -> { _nicknameInputState.tryEmit(NicknameInputState.VALID) }
         }
         _currentNickName.tryEmit(nickname)
     }
+
+    fun checkDuplicateNickname(nickname: String) {
+        viewModelScope.launch {
+            homeRepository.getDuplicateNickname(nickname)
+                .onSuccess {
+                    _nicknameInputState.tryEmit(NicknameInputState.NICKNAME_SUCCESS)
+                }
+                .onFailure {
+                    _nicknameInputState.tryEmit(NicknameInputState.DUPLICATE)
+                }
+        }
+    }
 }
\ No newline at end of file
diff --git a/presentation/src/main/java/com/dpm/presentation/login/viewmodel/SignUpViewModel.kt b/presentation/src/main/java/com/dpm/presentation/login/viewmodel/SignUpViewModel.kt
index 7122de5f..a4817650 100644
--- a/presentation/src/main/java/com/dpm/presentation/login/viewmodel/SignUpViewModel.kt
+++ b/presentation/src/main/java/com/dpm/presentation/login/viewmodel/SignUpViewModel.kt
@@ -97,5 +97,6 @@ enum class NicknameInputState {
     VALID,
     INVALID_LENGTH,
     INVALID_CHARACTER,
-    DUPLICATE
+    DUPLICATE,
+    NICKNAME_SUCCESS
 }
\ No newline at end of file