diff --git a/simtong-application/src/test/kotlin/team/comit/simtong/domain/holiday/usecase/RemainAnnualUseCaseTests.kt b/simtong-application/src/test/kotlin/team/comit/simtong/domain/holiday/usecase/RemainAnnualUseCaseTests.kt
new file mode 100644
index 00000000..1648d839
--- /dev/null
+++ b/simtong-application/src/test/kotlin/team/comit/simtong/domain/holiday/usecase/RemainAnnualUseCaseTests.kt
@@ -0,0 +1,52 @@
+package team.comit.simtong.domain.holiday.usecase
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.mockito.kotlin.given
+import org.springframework.boot.test.mock.mockito.MockBean
+import team.comit.simtong.domain.holiday.model.Holiday
+import team.comit.simtong.domain.holiday.model.HolidayType
+import team.comit.simtong.domain.holiday.spi.HolidaySecurityPort
+import team.comit.simtong.domain.holiday.spi.QueryHolidayPort
+import team.comit.simtong.global.annotation.SimtongTest
+import java.util.UUID
+
+@SimtongTest
+class RemainAnnualUseCaseTests {
+
+    @MockBean
+    private lateinit var queryHolidayPort: QueryHolidayPort
+
+    @MockBean
+    private lateinit var securityPort: HolidaySecurityPort
+
+    private lateinit var remainAnnualUseCase: RemainAnnualUseCase
+
+    private val id: UUID = UUID.randomUUID()
+
+    private val year: Int = 2023
+
+    @BeforeEach
+    fun setUp() {
+        remainAnnualUseCase = RemainAnnualUseCase(queryHolidayPort, securityPort)
+    }
+
+    @Test
+    fun `남은 연차 개수`() {
+        // given
+        val count: Long = 0
+
+        given(securityPort.getCurrentUserId())
+            .willReturn(id)
+
+        given(queryHolidayPort.countHolidayByYearAndUserIdAndType(year, id, HolidayType.ANNUAL))
+            .willReturn(count)
+
+        // when
+        val result = remainAnnualUseCase.execute(year)
+
+        // then
+        assertEquals(result, Holiday.ANNUAL_LEAVE_LIMIT - count)
+    }
+}
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