diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 000000000..6ff1628bd
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,14 @@
+# 기능 목록
+
+ ## 1. 게임 시작
+- 메세지 출력
+- 컴퓨터 난수 생성, 저장
+ ## 2. 게임 진행
+- 사용자 입력 저장
+- 사용자 / 컴퓨터 정답 비교
+- 스트라이크, 볼 수 출력
+ ## 3. 게임 종료
+- 정답 시 새 게임 또는 프로그램 종료
+ ## 4. 게임 비정상 종료
+- 정답시 서로 다른 숫자 3개 외 입력
+- 새 게임 진행 선택 시 1, 2을 제외한 입력
\ No newline at end of file
diff --git a/src/main/kotlin/baseball/Application.kt b/src/main/kotlin/baseball/Application.kt
index 148d75cc3..bf29ee7cf 100644
--- a/src/main/kotlin/baseball/Application.kt
+++ b/src/main/kotlin/baseball/Application.kt
@@ -1,5 +1,10 @@
 package baseball
 
+import baseball.controller.BaseBallController
+import camp.nextstep.edu.missionutils.Randoms
+import kotlin.system.exitProcess
+
 fun main() {
-    TODO("프로그램 구현")
+    val newGame = BaseBallController()
+    newGame.play()
 }
diff --git a/src/main/kotlin/baseball/controller/BaseBallController.kt b/src/main/kotlin/baseball/controller/BaseBallController.kt
new file mode 100644
index 000000000..fabc3d93b
--- /dev/null
+++ b/src/main/kotlin/baseball/controller/BaseBallController.kt
@@ -0,0 +1,32 @@
+package baseball.controller
+import baseball.model.Computer
+import baseball.model.User
+import baseball.view.View
+
+class BaseBallController {
+    fun play() {
+        val newUser = User()
+        val newView = View()
+        try {
+            var restart : String = "1"
+            newView.gameStart()
+            while (restart == "1") {
+                val computer = Computer.pickNumbers()
+                var breakIdx : Boolean = false
+
+                while (!breakIdx) {
+                    newView.requireInput()
+                    val input = readLine()
+                    val user = newUser.guess(input)
+                    val baseball = Computer.baseball(user, computer)
+                    val strikes = baseball.first
+                    val balls = baseball.second
+                    breakIdx = newView.check(strikes, balls)
+                }
+                restart = newView.restart()
+            }
+        } catch (e: IllegalArgumentException) {
+            throw IllegalArgumentException()
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/baseball/model/Computer.kt b/src/main/kotlin/baseball/model/Computer.kt
new file mode 100644
index 000000000..aaeee4ee5
--- /dev/null
+++ b/src/main/kotlin/baseball/model/Computer.kt
@@ -0,0 +1,35 @@
+package baseball.model
+
+
+import camp.nextstep.edu.missionutils.Randoms
+
+object Computer {
+    //컴퓨터 난수 생성, 저장
+    fun pickNumbers(): MutableList<Int> {
+
+        val computer = mutableListOf<Int>()
+        while (computer.size < 3) {
+            val randomNumber = Randoms.pickNumberInRange(1, 9)
+
+            if (!computer.contains(randomNumber)) {
+                computer.add(randomNumber)
+            }
+        }
+        return computer
+    }
+    // 사용자 / 컴퓨터 정답 비교
+    fun baseball(user: MutableList<Int>, computer : MutableList<Int>) :  Pair<Int, Int>{
+
+        var strikes : Int = 0
+        var balls : Int = 0
+        for (i in 0..2) {
+            if (user[i] == computer[i]) {
+                strikes++
+            }
+            else if (user[i] in computer.filterIndexed { index, _ -> index != i }) {
+                balls++
+            }
+        }
+        return Pair(strikes, balls)
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/baseball/model/User.kt b/src/main/kotlin/baseball/model/User.kt
new file mode 100644
index 000000000..1faad62ba
--- /dev/null
+++ b/src/main/kotlin/baseball/model/User.kt
@@ -0,0 +1,25 @@
+package baseball.model
+
+class User {
+    //사용자 입력 저장
+    fun guess( input : String? ): MutableList<Int> {
+        val user = mutableListOf<Int>()
+        if (input.isNullOrEmpty()) {
+            throw IllegalArgumentException()
+        }
+        else if (input.matches(Regex("\\d{3}"))) {
+            val charSet = HashSet<Char>()
+            for (number in input) {
+                if (charSet.contains(number)) {
+                    throw IllegalArgumentException()
+                }
+                charSet.add(number)
+                user.add(Character.getNumericValue(number))
+            }
+        }
+        else {
+            throw IllegalArgumentException()
+        }
+        return user
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/baseball/view/View.kt b/src/main/kotlin/baseball/view/View.kt
new file mode 100644
index 000000000..c8725082a
--- /dev/null
+++ b/src/main/kotlin/baseball/view/View.kt
@@ -0,0 +1,65 @@
+package baseball.view
+
+class View {
+    // 스트라이크, 볼 수 출력
+    fun check(strikes: Int, balls: Int) : Boolean {
+        var breakIdx : Boolean = false
+        //판정
+        // no balls
+        if (balls == 0) {
+            //낫싱
+            if (strikes == 0) {
+                println("낫싱")
+            }
+            //온리 스트라이크
+            else {
+                println( "${strikes}스트라이크" )
+                if (strikes == 3) {
+                    println("3개의 숫자를 모두 맞히셨습니다! 게임 종료\n" +
+                            "게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.")
+                    breakIdx = true
+                }
+            }
+        }
+        // balls, strikes
+        else if (strikes != 0) {
+            println("${balls}볼 ${strikes}스트라이크")
+        }
+        // no strikes
+        else {
+            println("${balls}볼")
+        }
+        return breakIdx
+    }
+
+    fun restart() : String {
+        val restart = readLine().toString()
+        when (restart)
+        {
+            "1" ->
+            {
+                doNothing()
+            }
+            "2" ->
+            {
+                println("종료")
+            }
+            else ->
+            {
+                throw IllegalArgumentException()
+            }
+        }
+        return restart
+    }
+
+    // 메세지 출력 함수
+    fun gameStart() = println(GAME_START)
+    fun requireInput() = println(REQUIRE_INPUT)
+
+    companion object {
+        const val GAME_START = "숫자 야구 게임을 시작합니다."
+        const val REQUIRE_INPUT = "숫자를 입력해주세요 : "
+    }
+
+    fun doNothing() {}
+}
\ No newline at end of file
diff --git a/src/test/kotlin/baseball/ApplicationTest.kt b/src/test/kotlin/baseball/ApplicationTest.kt
index 5c4ad5c23..e7597f962 100644
--- a/src/test/kotlin/baseball/ApplicationTest.kt
+++ b/src/test/kotlin/baseball/ApplicationTest.kt
@@ -7,7 +7,8 @@ import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
 
-class ApplicationTest : NsTest() {
+class
+ApplicationTest : NsTest() {
     @Test
     fun `게임종료 후 재시작`() {
         assertRandomNumberInRangeTest(