Material cart for building construction

The utility model is applicable to the technical field of building construction, and provides a material cart for building construction, which comprises a cart body, the bottom end of the cart body is rotatably connected with a displacement wheel, and the bottom end of the cart body is fixedly connected with a support rod, a holding rod and a connecting mechanism at one end of the displacement wheel. By arranging the connecting mechanism, the fixing frame is pushed downwards, the fixing frame moves out of the fixing hole, the holding rod is rotated to drive the protruding block to conduct circumferential displacement along the annular groove, after the holding rod rotates by 180 degrees, the protruding block moves into the connecting groove and moves the holding rod, meanwhile, the protruding block slides in the connecting groove, and after rotation is completed, the holding rod is rotated by 180 degrees again, so that the fixing frame moves out of the fixing hole. And the convex block moves into the annular