The invention relates to a wheel type grooving machine comprising a guide body, a wheel type grooving mechanism and a cutting-off assembly. A guide-in channel is formed in the guide body. The wheel type grooving mechanism comprises an installing frame and four grooving assemblies. The installing frame is installed on the guide body. Each grooving assembly comprises a rotary cylinder and a cutting wheel. The rotary cylinders are installed on the installing frame. The cutting wheels are installed on the rotary cylinders and stretch in the guide-in channel. The cutting wheels of the four grooving assemblies form a quadrilateral shape in a surrounding mode. A cutting assembly comprises a drive part and a frame-shaped cutter, and the drive part is installed on the guide body. The frame-shaped cutter is installed on a drive frame. According to the wheel type grooving machine, the cutter is not liable to break.