A synchronous concurrent multichannel constant-deceleration safety brake system of a mine hoist at least comprises two independent brake circuits. Each brake circuit is composed of a hydraulic system, a constant-deceleration closed-loop electric-control device and a brake circuit used for detecting a feedback device, a same constant-deceleration given-value command signal is input into the constant-deceleration closed-loop electric-control devices of the independent brake circuits, a same speed feedback signal is received, and the difference value of the speed feedback signals and the constant-deceleration given-value command signals after comparison is taken as input orders of the independent brake circuits to control the brake circuits; the independent brake circuit input hydraulic medium to a same executing element; the brake system works when an optional or multiple independent brake circuits work.