The invention discloses a crab pot which can be disintegrated automatically and relates to a fishing crab pot, and the problem that is solved by the invention is that crabs are still caught even after the pot is lost, which causes resource destruction and waste. The technical scheme of the invention comprises a frame which consists of an upper cycloid body, a lower cycloid body and upright posts used for connecting the upper cycloid body and the lower cycloid body. The periphery of the frame and a net coat binding the upper cycloid body and the lower cycloid body are formed the pot, the side of the pot is provided with one or a plurality of luring ports, the cut edge of the luring ports is connected with a funnel-web, the caliber of which shrinks gradually. The crab pot is characterized in that the splicing edge of the net coat of the pot is woven or stitched up by degradable net wires. The crab pot is used for special fishing gears that catch crabs.