diff --git a/app/src/main/java/team/retum/jobisandroidv2/JobisApplication.kt b/app/src/main/java/team/retum/jobisandroidv2/JobisApplication.kt
index 6407a8275..cbb2fa6d6 100644
--- a/app/src/main/java/team/retum/jobisandroidv2/JobisApplication.kt
+++ b/app/src/main/java/team/retum/jobisandroidv2/JobisApplication.kt
@@ -1,7 +1,52 @@
 package team.retum.jobisandroidv2
 
 import android.app.Application
+import android.content.Intent
+import android.widget.Toast
+import com.google.firebase.Firebase
+import com.google.firebase.crashlytics.crashlytics
 import dagger.hilt.android.HiltAndroidApp
+import team.retum.common.exception.ConnectionTimeOutException
+import team.retum.common.exception.OfflineException
+import team.retum.common.exception.ReissueException
+import team.retum.common.exception.UnknownException
+import kotlin.system.exitProcess
+
+private const val InternetErrorMsg = "인터넷 연결을 확인해주세요."
+private const val TimeoutErrorMsg = "요청 시간이 초과되었습니다.\n다시 시도해주세요."
+private const val LoginErrorMsg = "유저정보가 확인되지 않습니다.\n다시 로그인 해주세요."
+private const val UnknownErrorMsg = "처리 중 문제가 발생했습니다."
 
 @HiltAndroidApp
-class JobisApplication : Application()
+class JobisApplication : Application() {
+    override fun onCreate() {
+        super.onCreate()
+
+        Thread.setDefaultUncaughtExceptionHandler { _, e ->
+            Firebase.crashlytics.recordException(e)
+
+            when (e) {
+                is OfflineException -> makeToast(InternetErrorMsg)
+                is ConnectionTimeOutException -> makeToast(TimeoutErrorMsg)
+                is ReissueException -> makeToast(LoginErrorMsg)
+                is UnknownException -> makeToast(UnknownErrorMsg)
+                else -> makeToast(UnknownErrorMsg)
+            }
+
+            val intent = this.packageManager.getLaunchIntentForPackage(this.packageName)
+            if (intent != null) {
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK)
+                this.startActivity(intent)
+                exitProcess(0)
+            }
+        }
+    }
+
+    private fun makeToast(message: String) {
+        Toast.makeText(
+            this,
+            message,
+            Toast.LENGTH_SHORT,
+        ).show()
+    }
+}
diff --git a/core/common/src/main/java/team/retum/common/exception/RequestExceptions.kt b/core/common/src/main/java/team/retum/common/exception/RequestExceptions.kt
index d35169974..ea5d906be 100644
--- a/core/common/src/main/java/team/retum/common/exception/RequestExceptions.kt
+++ b/core/common/src/main/java/team/retum/common/exception/RequestExceptions.kt
@@ -10,3 +10,5 @@ data object TooManyRequestException : RuntimeException()
 data object ServerException : RuntimeException()
 data object OfflineException : RuntimeException()
 data object ConnectionTimeOutException : RuntimeException()
+data object UnknownException : RuntimeException()
+data object ReissueException : RuntimeException()
diff --git a/core/network/src/main/java/team/retum/network/util/RefreshTokenService.kt b/core/network/src/main/java/team/retum/network/util/RefreshTokenService.kt
index 523150d72..6e10524a2 100644
--- a/core/network/src/main/java/team/retum/network/util/RefreshTokenService.kt
+++ b/core/network/src/main/java/team/retum/network/util/RefreshTokenService.kt
@@ -7,6 +7,7 @@ import okhttp3.logging.HttpLoggingInterceptor
 import retrofit2.Retrofit
 import retrofit2.converter.moshi.MoshiConverterFactory
 import team.retum.common.enums.PlatformType
+import team.retum.common.exception.ReissueException
 import team.retum.network.BuildConfig
 import team.retum.network.api.AuthApi
 import team.retum.network.model.response.TokenResponse
@@ -40,7 +41,7 @@ object RefreshTokenService {
         }.onSuccess { token ->
             return token
         }.onFailure {
-            throw IllegalStateException("Fail refresh: ${it.message}")
+            throw ReissueException
         }.getOrThrow()
     }
 }
diff --git a/core/network/src/main/java/team/retum/network/util/RequestHandler.kt b/core/network/src/main/java/team/retum/network/util/RequestHandler.kt
index 622b6e85a..1d1eb6cb6 100644
--- a/core/network/src/main/java/team/retum/network/util/RequestHandler.kt
+++ b/core/network/src/main/java/team/retum/network/util/RequestHandler.kt
@@ -11,6 +11,7 @@ import team.retum.common.exception.OfflineException
 import team.retum.common.exception.ServerException
 import team.retum.common.exception.TooManyRequestException
 import team.retum.common.exception.UnAuthorizedException
+import team.retum.common.exception.UnknownException
 import java.net.SocketTimeoutException
 import java.net.UnknownHostException
 
@@ -63,6 +64,6 @@ class RequestHandler<T> {
         } catch (e: UnknownHostException) {
             throw OfflineException
         } catch (e: Throwable) {
-            throw e
+            throw UnknownException
         }
 }