The invention discloses a movable grinding vibration device for machining wall building blocks. The movable grinding vibration device structurally comprises an adjustable foot cup, a supporting foot,a frame, a conveying belt, a vibrating box, an electric cabinet, a supporting base, an infrared ray limiting device, a motor supporting plate, a power device, a guide roller, an inner cavity, buildingblocks, a die, a through hole, a vibrating mechanism, an ejection block and a round through hole; and the adjustable foot cup is vertically installed at the bottom of the supporting foot in a bolt connection manner, and the supporting foot is vertically installed at the bottom of the frame in a welding manner. By means of the movable grinding vibration device for machining the wall building blocks, the vibrating mechanism is wholly fixed to the supporting base, the to-be-ground building blocks are placed into the die, and the die is conveyed to the bottom of the vibrating mechanism through aconveying belt; the infrared ray limiting device is used for positioning, and conveying of the conveying belt can be accurately controlled; and a frequency changer is arranged in a control box, the vibrating frequency of a tamping plate can be adjusted, the building blocks in different kinds can be machined, and the grinding effects is ideal.