Leg muscle exercising device with waist health care function

The invention discloses a leg muscle exercising device with a waist health care function, and particularly relates to the technical field of leg muscle exercising devices. The leg muscle exercising device comprises a base, moving grooves are formed in the front side and the rear side of the top of the base, one side of each moving groove extends to the surface of the outer side wall of the base, and a toothed plate is arranged in each moving groove; a collecting box is fixedly arranged at the tops of the two toothed plates, a plurality of inserting holes are formed in the surfaces of the tops of the toothed plates, mounting plates are fixedly arranged on the front side and the rear side of the top of the base, and inserting rods are arranged in the mounting plates. During use, a user sits on a soft cushion, the back of the user leans on a box body, then the user pushes a collecting box with two feet to perform leg muscle exercise, when the user feels weak, a pull ring is pulled to rotate an insertion rod, a l