diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index dd95a34214..625b1171c1 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,11 @@
 package baseball;
 
+import java.util.*;
+import camp.nextstep.edu.missionutils.Randoms;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        GameController gameController = new GameController();
+        gameController.startGame();
     }
 }
diff --git a/src/main/java/baseball/GameController.java b/src/main/java/baseball/GameController.java
new file mode 100644
index 0000000000..2733574fb7
--- /dev/null
+++ b/src/main/java/baseball/GameController.java
@@ -0,0 +1,44 @@
+package baseball;
+
+import java.util.*;
+import camp.nextstep.edu.missionutils.Console;
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class GameController {
+    public static void startGame() {
+        boolean again = true;
+        System.out.println("숫자 야구 게임을 시작합니다.");
+
+        while (again) {
+            NumberGenerator numberGenerator = new NumberGenerator();
+            List<Integer> computerNum = numberGenerator.getRandomComputerNumber();
+
+            boolean baseballGame = true;
+            while (baseballGame) {
+                InputHandler inputHandler = new InputHandler();
+                List<Integer> userNum = inputHandler.getUserInput();
+
+                NumberChecker numberChecker = new NumberChecker();
+                baseballGame = numberChecker.checkNumber(computerNum, userNum);
+            }
+
+            again = askForRestart();
+        }
+    }
+
+    private static boolean askForRestart() {
+        try {
+            System.out.println("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+            int restart = Integer.parseInt(Console.readLine());
+            if (restart == 1) {
+                return true;
+            } else if (restart == 2) {
+                return false;
+            } else {
+                throw new IllegalArgumentException();
+            }
+        } catch (IllegalArgumentException e) {
+            throw new IllegalArgumentException("잘못된 입력입니다. 게임을 종료합니다.");
+        }
+    }
+}
diff --git a/src/main/java/baseball/InputHandler.java b/src/main/java/baseball/InputHandler.java
new file mode 100644
index 0000000000..3f522855e0
--- /dev/null
+++ b/src/main/java/baseball/InputHandler.java
@@ -0,0 +1,28 @@
+package baseball;
+
+import java.util.*;
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class InputHandler {
+    public static List<Integer> getUserInput() {
+        try {
+            System.out.print("숫자를 입력해주세요 : ");
+            String inputUserNum = camp.nextstep.edu.missionutils.Console.readLine();
+            if (inputUserNum == null || inputUserNum.length() != 3) {
+                throw new IllegalArgumentException();
+            }
+
+            List<Integer> userInput = new ArrayList<>();
+            for (char digitChar : inputUserNum.toCharArray()) {
+                int digit = Character.getNumericValue(digitChar);
+                if (digit < 1 || digit > 9) {
+                    throw new IllegalArgumentException();
+                }
+                userInput.add(digit);
+            }
+            return userInput;
+        } catch (IllegalArgumentException e) {
+            throw new IllegalArgumentException("잘못된 입력입니다. 다시 시도해주세요.");
+        }
+    }
+}
diff --git a/src/main/java/baseball/NumberChecker.java b/src/main/java/baseball/NumberChecker.java
new file mode 100644
index 0000000000..0b43b8ba75
--- /dev/null
+++ b/src/main/java/baseball/NumberChecker.java
@@ -0,0 +1,35 @@
+package baseball;
+
+import java.util.*;
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class NumberChecker {
+    public boolean checkNumber(List<Integer> computerNum, List<Integer> userNum) {
+        int strike = 0;
+        int ball = 0;
+
+        for (int i = 0; i < 3; i++) {
+            if (userNum.get(i).equals(computerNum.get(i))) {
+                strike++;
+            } else if (computerNum.contains(userNum.get(i))) {
+                ball++;
+            }
+        }
+        if (strike == 0 && ball == 0) {
+            System.out.println("낫싱");
+        } else if (strike == 3) {
+            System.out.println(strike + "스트라이크");
+            System.out.println("3개의 숫자를 모두 맞히셨습니다! 게임 종료");
+            return false; // 게임 종료
+        } else {
+            if (ball > 0) {
+                System.out.print(ball + "볼 ");
+            }
+            if (strike > 0) {
+                System.out.print(strike + "스트라이크");
+            }
+            System.out.println();
+        }
+        return true;
+    }
+}
diff --git a/src/main/java/baseball/NumberGenerator.java b/src/main/java/baseball/NumberGenerator.java
new file mode 100644
index 0000000000..703fb50cde
--- /dev/null
+++ b/src/main/java/baseball/NumberGenerator.java
@@ -0,0 +1,19 @@
+package baseball;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class NumberGenerator {
+    public static List<Integer> getRandomComputerNumber() {
+        List<Integer> computerNum = new ArrayList<>();
+        while (computerNum.size() < 3) {
+            int randomNumber = Randoms.pickNumberInRange(1, 9);
+            if (!computerNum.contains(randomNumber)) {
+                computerNum.add(randomNumber);
+            }
+        }
+        return computerNum;
+    }
+}
diff --git a/src/main/java/baseball/ResultPrinter.java b/src/main/java/baseball/ResultPrinter.java
new file mode 100644
index 0000000000..7803662f2b
--- /dev/null
+++ b/src/main/java/baseball/ResultPrinter.java
@@ -0,0 +1,22 @@
+package baseball;
+
+public class ResultPrinter {
+    public static boolean printResult(int strike, int ball) {
+        if (strike == 0 && ball == 0) {
+            System.out.println("낫싱");
+        } else if (strike == 3) {
+            System.out.println(strike + "스트라이크");
+            System.out.println("3개의 숫자를 모두 맞히셨습니다! 게임 종료");
+            return false; // 게임 종료
+        } else {
+            if (ball > 0) {
+                System.out.print(ball + "볼 ");
+            }
+            if (strike > 0) {
+                System.out.print(strike + "스트라이크");
+            }
+            System.out.println();
+        }
+        return true;
+    }
+}
diff --git a/src/main/java/baseball/Validator.java b/src/main/java/baseball/Validator.java
new file mode 100644
index 0000000000..d645bc2277
--- /dev/null
+++ b/src/main/java/baseball/Validator.java
@@ -0,0 +1,16 @@
+package baseball;
+
+public class Validator {
+    public static void validateInput(String input) {
+        if (input == null || input.length() != 3) {
+            throw new IllegalArgumentException();
+        }
+
+        for (char digitChar : input.toCharArray()) {
+            int digit = Character.getNumericValue(digitChar);
+            if (digit < 1 || digit > 9) {
+                throw new IllegalArgumentException();
+            }
+        }
+    }
+}