The invention discloses a device for automatically removing crawfish guts and taking crawfish meat. The device comprises a crawfish conveying device and a crawfish gut removing and crawfish meat taking device, wherein the crawfish conveying device is set to clamp and convey trunk parts of crawfish; the crawfish gut removing and crawfish meat taking device comprises a trunk positioning table, a shell breaking knife, a crawfish gut removing mechanism and a crawfish meat check block; the trunk positioning table, the shell breaking knife, the crawfish gut removing mechanism and the crawfish meat check block are sequentially distributed. The trunk positioning table of the crawfish gut removing and crawfish meat taking device can be used for positioning the trunks of the crawfish; the trunks ofthe crawfish are conveyed by the crawfish conveying device so as to sequentially pass through the shell breaking knife, the crawfish gut removing mechanism and the crawfish meat check block, so that the crawfish guts and the crawfish meat in the trunks of the crawfish can be automatically separated out.