The invention discloses a safe braking vehicle of a monorail crane for mines. A hydraulic system is pressurized by a manual pump, so that a brake block of a brake is separated from a rail web; in a using process, an energy accumulator is additionally provided to supply pressure to the system to prevent that pressure of hydraulic oil in the brake can be possibly and gradually reduced; the system pressure is displayed through a pressure gauge, the number displayed on the pressure gauge is observed before an engine runs, and the system is required to be pressurized through the manual pump if the number is reduced; in an engine climbing process, if a pull rod between a driver and a load is cracked, the load coasts together with the safe brake vehicle, and a centrifugal releaser drives a driving lever of the safe brake vehicle to promote a mechanical reversing valve to release when the speed reaches a set speed of the centrifugal releaser, so that the system is unloaded, the brake applies brake, and the aim of protecting the load is achieved. The hydraulic system independent of an engine hydraulic system is adopted, and does not influence the engine hydraulic system when the lever is cracked. The safe braking vehicle has a simple structure, and is easy to realize.