The invention discloses a brake pedal and speed change handle linkage type corn machine control mechanism, and belongs to the technical field of agricultural machinery. The mechanism comprises a control installation frame and a main speed change swing arm welding part. A main speed change handle welding part is installed on the main speed change swing arm welding part. Two neutral position pull rods are hinged to and installed on the main speed change swing arm welding part. A neutral position pull plate is fixedly connected with each neutral position pull rod. A neutral position swing arm welding part is hinged to and installed at the lower end of the control installation frame. The mechanism further comprises a first installation base and a brake pedal welding part. The brake pedal welding part is installed on the neutral position swing arm welding part through a first connection pin shaft in a restrained mode. The neutral position swing arm welding part is installed on the two neutral position pull plates through a second connection pin shaft in a restrained mode. The invention further discloses a corn machine. When the corn machine fails or emergency situations happen in front of the corn machine and emergency braking needs to be conducted, a brake pedal is stepped down, a main speed change handle returns to the neutral position at the same time, and the corn machine rapidly stops.