The invention discloses a method for implementing an inter-frame predictor for a video encoder. The method comprises the following steps of: mapping each functional block of the inter-frame predictor of the video encoder which is described by a high-level program language algorithm into hardware logic description consisting of arithmetic operator units; and generating a hardware integrated circuit of the inter-frame predictor by the hardware logic description consisting of the arithmetic operator units. By the method, the speed for implementing the integrated circuit of the inter-frame predictor can be increased. The invention also discloses the inter-frame predictor acquired by the method.