The invention discloses a booster for vehicle repair, and relates to the field of vehicle repair tools. The booster is ingenious in structure, convenient to use, good in stability and convenient to transfer and store. The booster comprises a pedal, a driving arm, a sleeve, a rotating pin and a support base; the driving arm comprises a first arm, a second arm and a third arm, the second arm is hollow, the first arm and the third arm are arranged in the second arm and connected to the two ends of the second arm through threads, the pedal is fixedly connected to the end, stretching out of the second arm, of the first arm, and the sleeve is hinged to the end, stretching out of the second arm, of the third arm, the support base comprises an inner base and an outer base, and the inner base is connected into the outer base through threads; a vertical through groove used for containing the driving arm is formed in the top of the inner base, and mounting holes matched with the rotating pin areformed in the two sides of the vertical through groove respectively; an containing hole matched with the rotating pin is formed in the middle of the second arm. The booster has the advantages of beingingenious in structure, convenient to use, good in stability and convenient to transfer and store.