Elevator anti-falling safety support

An elevator anti-falling safety support comprises an inner side wall supporting assembly used for being arranged in the space between an upper standard knot and a lower standard knot. The inner side wall supporting assembly comprises a first inner side wall supporting piece, a second inner side wall supporting piece and an adjusting connecting structure which is arranged between the first inner side wall supporting piece and the second inner side wall supporting piece and enables the first inner side wall supporting piece and the second inner side wall supporting piece to be connected. The adjusting connecting structure can adjust the distance between the first inner side wall supporting piece and the second inner side wall supporting piece. According to the utility model, the adjacent standard knots are supported, so that the stress of the connecting bolts is improved, the damage to the connecting bolts is reduced, the standard knots are effectively prevented from being broken, and the cage is prevented from