The PCY14-1B axial piston pump is equipped with a valve plate and a cylinde block. In order to reduce the friction between the piston shoe and the wear plate, as well as the friction between the cylinder block and the valve plate, the product is designed with a hydrostatic balance system. This design provides the product with longer service life. Also, the product has other features, suct as simple structure, high efficient, light weight, and strong self-suction capability.