The invention relates to a mixed control method of a base material. The mixed control method comprises the following steps that a first conveying motor and a second conveying motor are started, and then a first stirring motor and a second stirring motor are started; according to reading of a first encoder and a second encoder, the rotating speed of the first conveying motor and the rotating speedof the second conveying motor are adjusted; and according to reading of a third encoder and a fourth encoder, the rotating speed of the first stirring motor and the rotating speed of the second stirring motor are adjusted, and the proportion of the material drop quantity below a base material hopper and the material drop quantity below a color material hopper is constant.