The invention provides a control method which is beneficial for the uniformity of the temperature field in a hatching machine. The method comprises the following steps: the shell of the hatching machine is internally provided with a plurality of fans and heating pipes; furthermore, the fans are horizontally arranged on the top plate of the shell; the heating pipes are horizontally arranged below the fans; a base consisting of two horizontal frames is arranged in the shell, wherein the horizontal frames are connected at the upper part and the lower part of the base respectively; the upper frame is connected with the top plate of the shell; fans are hung on the upper frame; the heating pipe is flatly arranged on the lower frame; 1-3 heating pipes correspond to the lower part of each fan; furthermore, the fan and the corresponding heating pipe remain the clearance of 2-4cm. The control method thoroughly improves the heating and mixing mode in the prior art, thus balancing the temperature of all points in the shell, effectively solving the temperature balancing problem in the shell and being beneficial to the uniformity of the temperature field in the shell. Obvious temperature gradient or blind area is not generated in the shell, thus obtaining the best hatching temperature, being beneficial to energy-saving and improving the hatching quality.