diff --git a/docs/README.md b/docs/README.md
index e69de29b..59b3a628 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -0,0 +1,19 @@
+입력
+    경주할 자동차의 이름 입력(5자 이내)
+    시도할 횟수 입력
+출력
+    각 차수별 실행 결과 출력
+    최종 우승자 출력
+자동차
+    자동차 객체 생성
+    0에서 9 사이에서 무작위 값 구하기
+    숫자가 4이상이면 자동차 전진
+    자동차가 전진한 횟수만큼 -로 표시
+경주 게임
+    입력받은 만큼 경주 반복
+    가장 많이 전진한 자동차를 우승자로 선정
+    우승자가 여러명일 경우 쉼표로 구분
+오류
+    자동차 이름 5자 이내
+    시도 횟수 0 이상
+    시도 횟수는 숫자
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diff --git a/src/main/java/racingcar/Application.java b/src/main/java/racingcar/Application.java
index a17a52e7..6491ee0f 100644
--- a/src/main/java/racingcar/Application.java
+++ b/src/main/java/racingcar/Application.java
@@ -1,7 +1,7 @@
 package racingcar;
-
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        RacingGame racingGame = new RacingGame();
+        racingGame.start();
     }
-}
+}
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diff --git a/src/main/java/racingcar/Car.java b/src/main/java/racingcar/Car.java
new file mode 100644
index 00000000..bfe4cf33
--- /dev/null
+++ b/src/main/java/racingcar/Car.java
@@ -0,0 +1,11 @@
+package racingcar;
+public class Car {
+    private final String name;
+    private int position=0;
+    public Car(String name){this.name = name;}
+
+    public void move(int number){if(number>=4){position++;}}
+    public String getName(){return name;}
+    public int getPosition(){return position;}
+    public String getPositionSign(){return "-".repeat(position);}
+}
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diff --git a/src/main/java/racingcar/Input.java b/src/main/java/racingcar/Input.java
new file mode 100644
index 00000000..77345247
--- /dev/null
+++ b/src/main/java/racingcar/Input.java
@@ -0,0 +1,22 @@
+package racingcar;
+import camp.nextstep.edu.missionutils.Console;
+import java.util.*;
+public class Input{
+    public static List<Car> readCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
+        String input = Console.readLine();
+        String[] names = input.split(",");
+        List<Car> cars = new ArrayList<>();
+        for (String name : names) {
+            Validator.validateCarName(name.trim());
+            cars.add(new Car(name.trim()));
+        }
+        return cars;
+    }
+    public static int readTryCount() {
+        System.out.println("시도할 회수는 몇회인가요?");
+        String input = Console.readLine();
+        return Validator.validateTryCount(input);
+    }
+
+}
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diff --git a/src/main/java/racingcar/Output.java b/src/main/java/racingcar/Output.java
new file mode 100644
index 00000000..1e79b11c
--- /dev/null
+++ b/src/main/java/racingcar/Output.java
@@ -0,0 +1,15 @@
+package racingcar;
+import java.util.*;
+public class Output {
+    public static void printRoundResult(List<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car.getName() + " : " + car.getPositionSign());
+        }
+        System.out.println();
+    }
+    public static void printWinners(List<Car> winners) {
+        String result = String.join(", ",
+                winners.stream().map(Car::getName).toList());
+        System.out.println("최종 우승자 : " + result);
+    }
+}
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diff --git a/src/main/java/racingcar/RacingGame.java b/src/main/java/racingcar/RacingGame.java
new file mode 100644
index 00000000..5ee93382
--- /dev/null
+++ b/src/main/java/racingcar/RacingGame.java
@@ -0,0 +1,37 @@
+package racingcar;
+import camp.nextstep.edu.missionutils.Randoms;
+import java.util.*;
+public class RacingGame {
+    private List<Car> cars;
+    private int tryCount;
+    public void start() {
+        cars = Input.readCarNames();
+        tryCount = Input.readTryCount();
+        System.out.println("\n실행 결과");
+        for (int i = 0; i < tryCount; i++) {
+            raceOnce();
+            Output.printRoundResult(cars);
+        }
+        List<Car> winners = getWinners();
+        Output.printWinners(winners);
+    }
+    private void raceOnce() {
+        for (Car car : cars) {
+            int number = Randoms.pickNumberInRange(0, 9);
+            car.move(number);
+        }
+    }
+    private List<Car> getWinners() {
+        int maxPosition = cars.stream()
+                .mapToInt(Car::getPosition)
+                .max()
+                .orElse(0);
+        List<Car> winners = new ArrayList<>();
+        for (Car car : cars) {
+            if (car.getPosition() == maxPosition) {
+                winners.add(car);
+            }
+        }
+        return winners;
+    }
+}
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diff --git a/src/main/java/racingcar/Validator.java b/src/main/java/racingcar/Validator.java
new file mode 100644
index 00000000..911dbb91
--- /dev/null
+++ b/src/main/java/racingcar/Validator.java
@@ -0,0 +1,19 @@
+package racingcar;
+public class Validator {
+    public static void validateCarName(String name) {
+        if (name == null || name.trim().isEmpty() || name.length() > 5) {
+            throw new IllegalArgumentException("자동차 이름은 1~5자 이내여야 합니다.");
+        }
+    }
+    public static int validateTryCount(String input) {
+        try {
+            int count = Integer.parseInt(input);
+            if (count < 0) {
+                throw new IllegalArgumentException("시도 횟수는 0 이상이어야 합니다.");
+            }
+            return count;
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("시도 횟수는 숫자여야 합니다.");
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/racingcar/ApplicationTest.java b/src/test/java/racingcar/ApplicationTest.java
index 764ba4c6..ce82c3c6 100644
--- a/src/test/java/racingcar/ApplicationTest.java
+++ b/src/test/java/racingcar/ApplicationTest.java
@@ -1,38 +1,32 @@
 package racingcar;
-
 import camp.nextstep.edu.missionutils.test.NsTest;
 import org.junit.jupiter.api.Test;
-
 import static camp.nextstep.edu.missionutils.test.Assertions.assertRandomNumberInRangeTest;
 import static camp.nextstep.edu.missionutils.test.Assertions.assertSimpleTest;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-
 class ApplicationTest extends NsTest {
-    private static final int MOVING_FORWARD = 4;
-    private static final int STOP = 3;
-
+    private static final int MOVING_FORWARD=4;
+    private static final int STOP=3;
     @Test
     void 전진_정지() {
         assertRandomNumberInRangeTest(
             () -> {
-                run("pobi,woni", "1");
-                assertThat(output()).contains("pobi : -", "woni : ", "최종 우승자 : pobi");
+                run("pobi,woni","1");
+                assertThat(output()).contains("pobi : -","woni : ","최종 우승자 : pobi");
             },
             MOVING_FORWARD, STOP
         );
     }
-
     @Test
     void 이름에_대한_예외_처리() {
         assertSimpleTest(() ->
-                assertThatThrownBy(() -> runException("pobi,javaji", "1"))
+                assertThatThrownBy(() -> runException("pobi,javaji","1"))
                         .isInstanceOf(IllegalArgumentException.class)
         );
     }
-
     @Override
     public void runMain() {
         Application.main(new String[]{});
     }
-}
+}
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