Portable express delivery box

The utility model discloses a portable express delivery box which comprises a first box body, a second box body, a third box body and a fourth box body. And the outer wall of the second box body is provided with a moving part, the moving part is connected to the connecting part in a sliding mode and can move in the length direction of the connecting part, so that the second box body is embedded into the first box body, the moving part can be clamped into the limiting groove, and the second box body is fixed through cooperation of the limiting groove and the moving part. Through cooperation of the connecting part and the moving part, the second box body can be embedded into the first box body, stretching and retracting of the portable express delivery box are achieved, the occupied space is reduced, the transportation amount is increased, and the transportation cost is reduced. Meanwhile, a limiting groove is formed in the connecting part, and the moving part can be clamped into the limiting groove, so that th