diff --git "a/Programmers/Level3/43162_\353\204\244\355\212\270\354\233\214\355\201\254.js" "b/Programmers/Level3/43162_\353\204\244\355\212\270\354\233\214\355\201\254.js"
new file mode 100644
index 0000000..210681d
--- /dev/null
+++ "b/Programmers/Level3/43162_\353\204\244\355\212\270\354\233\214\355\201\254.js"
@@ -0,0 +1,37 @@
+/* 
+⭐️ 문제 정보 ⭐️
+문제 : 43162 - 네트워크
+레벨 : Level 3
+링크 : https://school.programmers.co.kr/learn/courses/30/lessons/43162
+*/
+
+function solution(n, computers) {
+  let answer = 0;
+  const visited = new Uint8Array(n);
+
+  function bfs(start) {
+    const queue = [start];
+    let head = 0;
+    visited[start] = 1;
+
+    while (head < queue.length) {
+      const cur = queue[head++];
+
+      for (let next = 0; next < n; next++) {
+        if (computers[cur][next] === 0) continue;
+        if (visited[next]) continue;
+
+        visited[next] = 1;
+        queue.push(next);
+      }
+    }
+  }
+
+  for (let start = 0; start < n; start++) {
+    // 이미 어떤 네트워크에 속해 있는 경우는 제외한다.
+    if (visited[start]) continue;
+    bfs(start);
+    answer++; // bfs 1번 = 네트워크 하나.
+  }
+  return answer;
+}
diff --git a/Programmers/README.md b/Programmers/README.md
index fb90a10..4d8ca37 100644
--- a/Programmers/README.md
+++ b/Programmers/README.md
@@ -41,6 +41,7 @@
 | 42840 | 모의고사 | [42840_모의고사.js](Level1/42840_모의고사.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/42840) |
 | 42888 | 오픈채팅방 | [42888_오픈채팅방.js](Level2/42888_오픈채팅방.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/42888) |
 | 42889 | 실패율 | [42889_실패율.js](Level1/42889_실패율.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/42889) |
+| 43162 | 네트워크 | [43162_네트워크.js](Level3/43162_네트워크.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/43162) |
 | 49993 | 스킬트리 | [49993_스킬트리.js](Level2/49993_스킬트리.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/49993) |
 | 49994 | 방문 길이 | [49994_방문_길이.js](Level2/49994_방문_길이.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/49994) |
 | 60057 | 문자열 압축 | [60057_문자열_압축.js](Level2/60057_문자열_압축.js) | [🔗](https://school.programmers.co.kr/learn/courses/30/lessons/60057) |