The invention relates to a gantry wrapping machine with a jacking platform, and belongs to the field of product packaging equipment. The gantry wrapping machine comprises a goods conveying line, a gantry frame, a top coating device, and a slewing and winding device. A jacking platform is arranged on the goods conveying line. The jacking platform comprises a grid platform and an adjustable-angle X-shaped bracket. One side of the bottom end of the X-shaped bracket is connected with a base through a rotary connector, and the other side is connected with a sliding wheel sliding in a horizontal track of the base and is connected with a transverse rod which is connected with a telescopic rod of a jacking cylinder fixed to the base. Therefore, the gantry wrapping machine of the invention has the following advantages: (1) the height of goods to be packed can be adjusted as needed, and automatic positioning can be performed according to different heights of products; and (2) film feeding, cutting and hot gluing operations can be completed automatically, and the efficiency of winding and the stability of winding quality are improved.