diff --git a/src/main/java/Application.java b/src/main/java/Application.java
new file mode 100644
index 000000000..37aa17a2f
--- /dev/null
+++ b/src/main/java/Application.java
@@ -0,0 +1,13 @@
+import baseball.controller.BaseballGame;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.*;
+
+public class Application {
+    public static void main(String[]args) throws IOException {
+        BaseballGame game = new BaseballGame();
+        game.play();
+    }
+}
diff --git a/src/main/java/baseball/controller/BaseballGame.java b/src/main/java/baseball/controller/BaseballGame.java
new file mode 100644
index 000000000..190f1d5a8
--- /dev/null
+++ b/src/main/java/baseball/controller/BaseballGame.java
@@ -0,0 +1,36 @@
+package baseball.controller;
+
+import baseball.model.Computer;
+import java.io.IOException;
+import java.util.HashMap;
+import view.InputView;
+
+public class BaseballGame {
+
+    private final InputView inputView;
+    private Computer computer;
+
+    public BaseballGame() {
+        this.inputView = new InputView();
+        this.computer = new Computer();
+    }
+
+    public void play() throws IOException {
+
+        while (true) {
+            HashMap<Integer, Integer> answer = computer.getAnswer();
+
+            while (true) {
+                String userNumber = inputView.validationNumber();
+                if (computer.validationStrikeAndBall(answer, userNumber)) {
+                    break;
+                }
+            }
+
+            if (inputView.isExit()) {
+                return;
+            }
+            computer = computer.newGame();
+        }
+    }
+}
diff --git a/src/main/java/baseball/model/Computer.java b/src/main/java/baseball/model/Computer.java
new file mode 100644
index 000000000..24d711feb
--- /dev/null
+++ b/src/main/java/baseball/model/Computer.java
@@ -0,0 +1,90 @@
+package baseball.model;
+
+import java.util.HashMap;
+import java.util.Random;
+
+public class Computer {
+
+    private final HashMap<Integer, Integer> answer;
+
+    public Computer() {
+        this.answer = createAnswer();
+    }
+
+    public Computer newGame() {
+        return new Computer();
+    }
+
+    public HashMap<Integer, Integer> createAnswer() {
+        HashMap<Integer, Integer> answer = new HashMap<>();
+
+        int NUMBER_SPACE_SIZE = 3;
+
+        while (answer.size() < NUMBER_SPACE_SIZE) {
+            int randomNumber = getRandomNumber();
+            if (answer.containsKey(randomNumber)) {
+                continue;
+            }
+            answer.put(randomNumber, answer.size() + 1);
+        }
+
+        return answer;
+    }
+
+    public int[] calculationStrikeAndBall(HashMap<Integer, Integer> answer, String userNumber) {
+        int strike = 0;
+        int ball = 0;
+
+        for (int i = 0; i < userNumber.length(); i++) {
+            int digit = Character.getNumericValue(userNumber.charAt(i));
+            Integer answerValue = answer.get(digit);
+
+            if (answerValue != null) {
+                if (answerValue.equals(i + 1)) {
+                    strike++;
+                } else {
+                    ball++;
+                }
+            }
+        }
+        return new int[]{strike, ball};
+    }
+
+    public boolean validationStrikeAndBall(HashMap<Integer, Integer> answer, String userNumber) {
+        int[] strikeAndBall = calculationStrikeAndBall(answer, userNumber);
+        int strike = strikeAndBall[0];
+        int ball = strikeAndBall[1];
+
+        if (strike == 3) {
+            System.out.println("정답입니다.");
+        }
+
+        if (strike == 0 && ball == 0) {
+            System.out.println("낫씽");
+        }
+
+        if (strike > 0 && ball == 0) {
+            System.out.printf("%s 스트라이크%s", strike, System.lineSeparator());
+        }
+
+        if (strike == 0 && ball > 0) {
+            System.out.printf("%s 볼%s", ball, System.lineSeparator());
+        }
+
+        if (strike > 0 && ball > 0) {
+            System.out.printf("%s 스트라이크, %s 볼%s", strike, ball, System.lineSeparator());
+        }
+
+        return strike == 3;
+    }
+
+    public int getRandomNumber() {
+        Random random = new Random();
+        return random.nextInt(9) + 1;
+    }
+
+    public HashMap<Integer, Integer> getAnswer() {
+        return answer;
+    }
+}
+
diff --git a/src/main/java/global/ValidationInput.java b/src/main/java/global/ValidationInput.java
new file mode 100644
index 000000000..7b2d5cc3e
--- /dev/null
+++ b/src/main/java/global/ValidationInput.java
@@ -0,0 +1,55 @@
+package global;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class ValidationInput {
+
+    public boolean isValidationUserNumber(String input) {
+        if (!isEmpty(input) || !isValidationLength(input) || !isContainsZero(input) || !isDuplicate(
+            input)) {
+            return false;
+        }
+        return true;
+    }
+
+    public boolean isEmpty(String input) {
+        if (input.isEmpty() || input.contains(" ")) {
+            System.out.println("공백을 입력하였습니다.");
+            return false;
+        }
+        return true;
+    }
+
+    public boolean isValidationLength(String input) {
+        if (input.length() != 3) {
+            System.out.println("3자리를 입력해 주세요.");
+            return false;
+        }
+        return true;
+    }
+
+    public boolean isContainsZero(String input) {
+        if (input.contains("0")) {
+            System.out.println("1~9를 입력해 주세요.");
+            return false;
+        }
+        return true;
+    }
+
+    public boolean isDuplicate(String input) {
+        Set<Character> number = new HashSet<>();
+
+        for (int i = 0; i < input.length(); i++) {
+            char word = input.charAt(i);
+            if (!number.add(word)) {
+                System.out.println("숫자는 중복되면 안됩니다.");
+                return false;
+            }
+        }
+        return true;
+    }
+
+}
+
+
diff --git a/src/main/java/view/InputView.java b/src/main/java/view/InputView.java
new file mode 100644
index 000000000..828963b00
--- /dev/null
+++ b/src/main/java/view/InputView.java
@@ -0,0 +1,46 @@
+package view;
+
+import global.ValidationInput;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class InputView {
+
+    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
+    private final ValidationInput validationInput;
+
+    public InputView() {
+        validationInput = new ValidationInput();
+    }
+
+    public String getUserNumber() throws IOException {
+        System.out.print("숫자를 입력해 주세요 : ");
+        return in.readLine();
+    }
+
+    public boolean isExit() throws IOException {
+        while (true) {
+            System.out.println("게임을 계속하시려면 1, 종료하시려면 2를 입력해주세요");
+            String input = in.readLine();
+            String CONTINUE = "1";
+            String EXIT = "2";
+            if (input.equals(EXIT)) {
+                return true;
+            }
+            if (input.equals(CONTINUE)) {
+                return false;
+            }
+        }
+    }
+
+    public String validationNumber() throws IOException {
+        String input;
+
+        do {
+            input = getUserNumber();
+        } while (!validationInput.isValidationUserNumber(input));
+
+        return input;
+    }
+}
diff --git a/src/test/java/baseball/BaseBallTest.java b/src/test/java/baseball/BaseBallTest.java
new file mode 100644
index 000000000..e7941c100
--- /dev/null
+++ b/src/test/java/baseball/BaseBallTest.java
@@ -0,0 +1,25 @@
+package baseball;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import baseball.model.Computer;
+import java.util.HashMap;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+public class BaseBallTest {
+
+    @Test
+    @DisplayName("컴퓨터 숫자 생성 테스트")
+    void CREATE_RANDOM_NUMBER() {
+        //given
+        Computer computer = new Computer();
+        computer.createAnswer();
+
+        //when
+        HashMap<Integer, Integer> number = computer.getAnswer();
+
+        //then
+        assertThat(number.size()).isEqualTo(3);
+    }
+}