The invention discloses a concrete mixing feeding device with a crushing function. The concrete mixing feeding device structurally comprises a concrete crushing device, a concrete stirring box, a water inlet pipe, a control box, a concrete discharging hopper, a supporting rod, bottom wheels, a display screen, a control button, a supporting bottom plate, a material adding hopper, a concrete raw material conveying bearing table and a conveying bearing table motor; the left end of the concrete crushing device is connected with the right end of the concrete stirring box; the control box is arranged on the front end surface of the concrete stirring box; the display screen and the control button are arranged on the control box; the concrete crushing device is characterized in that large-size stone blocks are subjected to primary crushing by a primary crushing structure, and then is subjected to secondary crushing by a secondary crushing structure; then the crushed stone blocks enter the concrete stirring box to be stirred; the crushed stone blocks can be smeared on a wall surface after being fully crushed; the crushed stone blocks do not extrude to affect the beauty of the wall surface after being fully crushed; and besides, the matching degree of the concrete and rebars is better, and the stressing limitation is better.