Wild clam worm catching device

The utility model relates to a wild clam worm catching device, which comprises a cylinder body with an upper opening at the upper part and a lower opening at the lower part, and a plurality of meshesthrough which water can pass and clam worms cannot pass are densely distributed on the cylinder wall of the cylinder body; the lower part of the cylinder body is connected with a first balance weightpart which enables the upper opening position of the cylinder body to be higher than the lower opening position all the time; a mesh bag with a large upper end opening and a small lower end opening isarranged at the middle upper part of the inner cavity of the cylinder body; the outer periphery of an opening in the upper end of the mesh bag is in annular closed connection with the inner peripheral wall of the cylinder body; an LED light source device capable of emitting light to attract clam worms and a second balance weight component enabling the opening in the lower end of the mesh bag notto float to the upper end du