The invention discloses a pulling force testing machine for a wood-plastic floor. The pulling force testing machine comprises a portal frame, and an upper pulling force device and a lower pulling force device which are arranged in the portal frame, wherein the portal frame is provided with a vertical rail; the upper pulling force device is driven by an upper sliding block to punch the floor up and down along the vertical rail at the top position of the portal frame; the lower pulling force device is pushed through a retractable structure and a retractable support, which are arranged at the bottom of the lower pulling force device, to punch the floor up and down along the portal frame; the lower pulling force device comprises a lower base, a pressing plate and an overturning feeding plate, wherein the pressing plate can be tightly or loosely connected with one side of the portal frame through a plurality of connecting rods in a manner of being relative to the portal frame; the overturning feeding plate is connected with the other side of the portal frame in a rotatable manner; when the overturning feeding plate is put down, the floor is fed to a place between the pressing plate and the overturning feeding plate. The pulling force testing machine disclosed by the invention is simple in structure, convenient to operate and high in automation degree and has a relatively good popularization and application prospect.