diff --git a/solution/binary_search/1477/main.py b/solution/binary_search/1477/main.py
new file mode 100644
index 00000000000..8705bbdb9a3
--- /dev/null
+++ b/solution/binary_search/1477/main.py
@@ -0,0 +1,29 @@
+# Authored by : yj2221
+# Co-authored by : -
+# Link : http://boj.kr/b93ed1e8f2a7413fa8fe39483692604f
+
+import sys
+
+def input():
+    return sys.stdin.readline().rstrip()
+
+n, m, l = map(int, input().split())
+rests = [0] + list(map(int, input().split())) + [l]
+rests.sort()
+
+_min = 0
+_max = l
+answer = _max
+while _min <= _max:
+    mid = (_min + _max) // 2
+    cnt = 0
+    for i in range(n+1):
+        cnt += (rests[i+1] - rests[i] - 1) // mid 
+        
+    if cnt<=m:
+        answer = mid
+        _max = mid-1
+    else:
+        _min = mid+1
+        
+print(answer)
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