diff --git a/basic_algo/countsort.py b/basic_algo/countsort.py
new file mode 100644
index 0000000..ab4f113
--- /dev/null
+++ b/basic_algo/countsort.py
@@ -0,0 +1,29 @@
+value = [81, 24, 4783, 38, -37, 10]
+
+def countingSort(arr):
+    if len(arr) == 0:
+        return
+
+    # Find min and max values
+    min_val = min(arr)
+    max_val = max(arr)
+
+    # Create count array
+    range_of_elements = max_val - min_val + 1
+    count = [0] * range_of_elements
+
+    # Store the count of each element
+    for num in arr:
+        count[num - min_val] += 1
+
+    # Rebuild the sorted array
+    index = 0
+    for i in range(len(count)):
+        while count[i] > 0:
+            arr[index] = i + min_val
+            index += 1
+            count[i] -= 1
+
+
+countingSort(value)
+print(value)
\ No newline at end of file