A braking system and a control method therefor, which are suitable for intelligent automobiles, new energy automobiles, etc. The braking system comprises a brake master cylinder (1), a booster (2), at least one first control valve (11, 12), at least one second control valve (21, 22, 23, 24), at least one third control valve (31, 32, 33, 34), at least one first interface (4), a first control unit (91) and a second control unit (92). Since the braking system has a multiple redundancy design, it can be ensured that the braking system can still satisfy various brake function requirements of a vehicle if a controller or a key electromagnetic valve fails, thereby improving the safety of the braking system, ensuring the feeling of a driver when pressing the pedal, and bringing a more stable and comfortable driving experience to the driver.