The invention discloses a recovery device for collecting crushed sides of aluminum strips. The recovery device comprises a crushed side blowing-in pipe, a collecting box, a support and a packing machine, and further comprises a buffer mechanism, a screw pushing mechanism, a transmission mechanism and a power source. The buffer mechanism and the screw pushing mechanism are arranged in the collecting box. The position of the buffer mechanism corresponds to that of an outlet of the crushed side blowing-in pipe. The position of an inlet of the screw pushing mechanism corresponds to that of the lower portion of the buffer mechanism, and the position of an outlet of the screw pushing mechanism corresponds to that of an inlet of the packing machine. The power source is fixed to the support, and connected with the buffer mechanism and the screw pushing mechanism through the transmission mechanism. A height adjustment mechanism is arranged at the bottom of the support and used for adjusting the height of the support. The impact of the crushed sides of the aluminum strips to the collecting box is effectively lowered, the crushed sides of the aluminum strips are prevented from blocking materials in the conveying process, the collecting efficiency is improved, and the use range is widened.