Battery module sampling assembly and battery module

The invention belongs to the technical field of battery modules, and particularly relates to a battery module sampling assembly and a battery module. The battery module sampling assembly comprises a wire harness supporting plate (3) and a buckle structure, and the wire harness supporting plate (3) and the buckle structure are integrally formed; a plurality of wire harness grooves are formed in the wire harness supporting plate (3) and are used for fixing wire harnesses (1); the buckle structures are arranged on the two sides of each wire harness groove in a staggered mode. The edge of the tail end of the buckle structure and the edge of one side of the wire harness groove are completely sealed, and a wire harness installation space is reserved between the edge of the tail end of the buckle structure and the edge of the other side of the wire harness groove. The buckle structure and the wire harness groove jointly enable the wire harness to be completely limited in the wire harness groove in the working state,