diff --git a/src/test/kotlin/com/yourssu/soongpt/domain/course/storage/business/CourseServiceTest.kt b/src/test/kotlin/com/yourssu/soongpt/domain/course/storage/business/CourseServiceTest.kt
new file mode 100644
index 0000000..4a68296
--- /dev/null
+++ b/src/test/kotlin/com/yourssu/soongpt/domain/course/storage/business/CourseServiceTest.kt
@@ -0,0 +1,70 @@
+package com.yourssu.soongpt.domain.course.storage.business
+
+import com.querydsl.jpa.impl.JPAQueryFactory
+import com.yourssu.soongpt.common.business.initialization.CollegesAndDepartmentsInitializer
+import com.yourssu.soongpt.common.support.config.ApplicationTest
+import com.yourssu.soongpt.common.support.fixture.CourseFixture
+import com.yourssu.soongpt.common.support.fixture.CourseTimeFixture
+import com.yourssu.soongpt.domain.course.business.CourseService
+import com.yourssu.soongpt.domain.course.implement.CourseRepository
+import com.yourssu.soongpt.domain.courseTime.implement.CourseTimeRepository
+import com.yourssu.soongpt.domain.department.storage.QDepartmentEntity.departmentEntity
+import com.yourssu.soongpt.domain.departmentGrade.storage.QDepartmentGradeEntity.departmentGradeEntity
+import com.yourssu.soongpt.domain.target.implement.Target
+import com.yourssu.soongpt.domain.target.implement.TargetRepository
+import org.junit.jupiter.api.*
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.springframework.beans.factory.annotation.Autowired
+
+@ApplicationTest
+class CourseServiceTest {
+    @Autowired
+    private lateinit var courseService: CourseService
+
+    @Autowired
+    private lateinit var courseRepository: CourseRepository
+
+    @Autowired
+    private lateinit var targetRepository: TargetRepository
+
+    @Autowired
+    private lateinit var courseTimeRepository: CourseTimeRepository
+
+    @Autowired
+    private lateinit var jpaQueryFactory: JPAQueryFactory
+
+    @Autowired
+    private lateinit var initializer: CollegesAndDepartmentsInitializer
+
+    @Nested
+    @DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores::class)
+    inner class findByDepartmentNameInMajorCore_메서드는 {
+        @Nested
+        @DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores::class)
+        inner class 학과를_받으면 {
+            val departmentName = "소프트웨어학부"
+            @BeforeEach
+            fun setUp() {
+                initializer.run()
+                val course = courseRepository.save(CourseFixture.MAJOR_CORE.toDomainRandomCourseCode())
+                val departmentGrade = jpaQueryFactory.selectFrom(departmentGradeEntity)
+                    .innerJoin(departmentEntity)
+                    .on(departmentGradeEntity.departmentId.eq(departmentEntity.id))
+                    .where(departmentEntity.name.eq(departmentName), departmentGradeEntity.grade.eq(4))
+                    .fetchOne()
+                    ?.toDomain()
+                    ?: throw IllegalArgumentException("소프트웨어학부 4학년이 존재하지 않습니다.")
+                targetRepository.save(Target(departmentGradeId = departmentGrade.id!!, courseId = course.id!!))
+                courseTimeRepository.save(CourseTimeFixture.MONDAY_17_19.toDomain(course.id!!))
+            }
+
+            @Test
+            @DisplayName("해당 학과가 수강대상인 과목 정보를 반환한다.")
+            fun success() {
+                val response = courseService.findByDepartmentNameInMajorCore(departmentName)
+
+                assertEquals(1, response.size)
+            }
+        }
+    }
+}
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