The invention provides a method for regulating a formula of a pig feed along with change of piggery temperature. The method is characterized in that: the consumption of components for providing protein and energy in the pig feed is regulated along with rise and fall of the piggery temperature. Specifically, the method comprises the step: the consumption of bean pulp, bran and corn in the pig feed is regulated along with rise and fall of the piggery temperature. Compared with pigs raised at higher piggery temperature, when the piggery temperature is low, pigs grow with increased demand on energy and reduced demand on protein. The consumption of the components for providing the protein and the energy in the pig feed is regulated according to different demands on the protein and the energy for the growth of the pigs at different piggery temperatures, so that the requirement of the growth of the pigs can be met, waste is avoided, pollution is reduced, and the raising cost is reduced.