A hoisting net belongs to a fish-trapping leisure tool. The net has a height of 1.2 meters; a loop of latex tube is tied on the lower edge of the net body; the lower edge is further connected with a narrow flat net; a plurality of small cement balls and iron screw caps are tied on bottoms of a vertical net and the flat net; an iron suction disc having a diameter of 30cm enters the water first; the periphery of the iron suction disc is provided with a plurality of iron jaws; a food bag is tied in the center of the iron suction disc; a marking wire is tied on the bag; iron leather having the height similar to a thumb is welded on the lower edge of the suction disc; a plurality of permanent magnetic bodies are attached to the iron leather; when a fisher sees a marking wire floater swinging, fishes enter the net; then the net body is expanded on the bank and a rubber tube is inflated via an inflator; the net bottom can be expanded into a round shape; the vertical net is raised up via a fishing rod and quickly put down over the marked line; an air outlet hole of the rubber tube can be automatically opened and the net body can quickly sink; when net grid wires loosen and the net touches the bottom; and then the vertical net is pulled and lifted up. Due to the gravity of material tied on the net, the net bottom quickly gets close to the suction disc and a screw cap can be tightly absorbed by the permanent magnetic body; the net-applying user continues to lift the net and the suction disc iron jaws grasp the flat net; and fishes in the net can escape nowhere.