The invention discloses a safety braking series-parallel connection redundancy two-level braking hydraulic station and a control method thereof. The hydraulic station comprises an oil pump, a motor, aproportional overflow valve, an overflow valve, a pressure reducing valve, a one-way valve, an energy accumulator, a sensor for monitoring the valve position, a B pipe brake, an A pipe brake and electromagnetic reversing valves. During safety braking, connection of an A brake and an oil tank and connection of a B brake and the oil tank are achieved through the two electromagnetic reversing valvesconnected in parallel, and parallel redundancy conduction is achieved. Connection of the B pipe brake and the proportional overflow valve is achieved through the two electromagnetic reversing valvesconnected in series, parallel connection of the B pipe brake and the overflow valve is achieved through one electromagnetic reversing valve and the two electromagnetic reversing valves connected in series, parallel redundancy conduction is achieved, or, connection of the B pipe brake and the overflow valve is achieved through the two electromagnetic reversing valves connected in parallel, parallelredundancy conduction is achieved, a closed loop is formed through the B pipe brake, and the first-level brake oil pressure value is maintained. Four channels are achieved during safety braking and are in redundancy, and if the transposition fault happens to one electromagnetic reversing valve in each channel, safety braking at the time can still be finished.