The invention belongs to the technical field of rubber processing, and particularly relates to a rubber mixing machine for rubber processing. The rubber mixing machine for rubber processing aims to achieve the technical effects that the plasticizing effect is good, the stability of rotating rollers is not influenced, damage is not prone to be made to the surfaces of the rotating rollers, and residual objects on the rotating rollers can be scraped and cleared. The rubber mixing machine for rubber processing comprises a machine frame, a hydraulic cylinder, a machine body, a raw material plasticizing adjusting mechanism, a pressing plate, a second motor, a third motor, a first rotating roller, a second rotating roller, a connecting plate, a stabilizing mechanism, a first scraping mechanism, asecond scraping mechanism and a collecting frame, and the machine body and the hydraulic cylinder are fixedly connected to the bottom of the machine frame. According to the rubber mixing machine forrubber processing, the effects that the plasticizing effect is good, the stability of the first rotating roller and the second rotating roller cannot be influenced, damage is not prone to be caused tothe surfaces of the rotating rollers, moreover, the residual objects on the rotating rollers can be scraped and cleared, and the residual objects can not accumulate in a collecting frame are achieved.