Method for mixing grain drink by shaking and shaking machine

The invention discloses a method for mixing a grain drink by shaking and a shaking machine. The shaking machine for the grain drink comprises a preparation section conveying platform and a shaking section conveying platform, wherein the shaking section conveying platform is communicated with the preparation section conveying platform; two conveying belts running in the same direction are arranged in the preparation section conveying platform and the shaking section conveying platform respectively. The shaking machine further comprises a roller, a servo motor for driving the roller to spin, and a servo controller connected with the servo motor, wherein the roller is mounted outside the shaking section conveying platform in a sleeving manner and fixedly connected with the shaking section conveying platform. According to the invention, the servo motor is used to drive the roller to move back and forth, so that the grain drink in a bottle is fully mixed, an internal net structure is formed, and a stable condition can be obtained.