diff --git a/README.md b/README.md
new file mode 100644
index 00000000..8e2193c9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,6 @@
+# Step1(2023-08-29) #
+    * [x] 순수 코틀린 모듈인 domain 모듈을 만든다.
+    * [x] 순수 코틀린 모듈인 data 모듈을 만든다.
+    * [x] data 모듈은 domain 모듈에 의존해야 한다.
+    * [x] app 모듈은 domain 모듈에 의존해야 한다.
+        
\ No newline at end of file
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 0245d0f8..c6d62682 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -42,6 +42,8 @@ android {
 }
 
 dependencies {
+    implementation(project(":domain"))
+
     implementation("org.jetbrains.kotlin:kotlin-stdlib:${Version.kotlin}")
     implementation("androidx.core:core-ktx:1.9.0")
     implementation("androidx.appcompat:appcompat:1.6.0")
diff --git a/data/.gitignore b/data/.gitignore
new file mode 100644
index 00000000..42afabfd
--- /dev/null
+++ b/data/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/data/build.gradle.kts b/data/build.gradle.kts
new file mode 100644
index 00000000..3b82685b
--- /dev/null
+++ b/data/build.gradle.kts
@@ -0,0 +1,12 @@
+plugins {
+    id("kotlin")
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
+dependencies {
+    implementation(project(":domain"))
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/nextstep/edu/data/MyClass.kt b/data/src/main/java/com/nextstep/edu/data/MyClass.kt
new file mode 100644
index 00000000..07cc2480
--- /dev/null
+++ b/data/src/main/java/com/nextstep/edu/data/MyClass.kt
@@ -0,0 +1,4 @@
+package com.nextstep.edu.data
+
+class MyClass {
+}
\ No newline at end of file
diff --git a/domain/.gitignore b/domain/.gitignore
new file mode 100644
index 00000000..42afabfd
--- /dev/null
+++ b/domain/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/domain/build.gradle.kts b/domain/build.gradle.kts
new file mode 100644
index 00000000..24e37c0f
--- /dev/null
+++ b/domain/build.gradle.kts
@@ -0,0 +1,8 @@
+plugins {
+    id("kotlin")
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
\ No newline at end of file
diff --git a/domain/src/main/java/com/nextstep/edu/domain/MyClass.kt b/domain/src/main/java/com/nextstep/edu/domain/MyClass.kt
new file mode 100644
index 00000000..2f38aadf
--- /dev/null
+++ b/domain/src/main/java/com/nextstep/edu/domain/MyClass.kt
@@ -0,0 +1,4 @@
+package com.nextstep.edu.domain
+
+class MyClass {
+}
\ No newline at end of file
diff --git a/settings.gradle.kts b/settings.gradle.kts
index fbf8d467..3a7681f0 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,2 +1,4 @@
 include(":app")
 rootProject.name = "android-github"
+include(":domain")
+include(":data")