Screw plate-shaped wodo branch crusher can cut log and small-diameter log with less than 200mm diameter and is applicable to paper pulp factory, forest tree factory, paper mill, thermal power plant and etc. This wood branch crusher is mainly composed of four parts such as principal machine, coupling, bottom frame and motor,etc,in which the principal machine of chipping machine is mainly composed of cutter head, upper and low cobers, feed inlet and outlet,etc.