The invention relates to a support frame, and in particular relates to a leg support frame for push-up training. The invention aims at designing the leg support frame for the push-up training, which has the advantages that the exercise intensity can be controlled, the training rhythm can be well adapted, the training result is great, and injuries are not caused to the body. The leg support frame for the push-up training comprises a base, guide rods, sliding sleeves, a fixing plate and the like, wherein the guide rods are symmetrically arranged on the left and right sides of the base, and the sliding sleeves are arranged on the guide rods in a sliding manner. By operating an adjusting mechanism, the left-right moving distance of a first rack can be adjusted, so that the height of the fixingplate is adjusted, namely, the intensity of push-up training can be changed, thus the good training effect is achieved, after training, the two legs are erected on cushion plates on the left and right sides, the legs press the cushion plates on the left and right sides in a reciprocating manner, so that the cushion plates on the left and right sides move vertically in a reciprocating manner, thenthe purpose that a trainee can still carry out leg exercise during a rest is achieved, the tightened muscle is avoided, and further, injuries are avoided.