The invention provides a sports device for exercising legs, which consists of leggings, outer thigh guards, tightening holes, tightening belts, tightening ports, knee guards, auxiliary guards, shin guards, inner Sponge layer, outer protective layer, fixed buckle, hamstring guard, reinforced spring tube, connecting shaft, telescopic rod, anti-trip, sleeve rod, spring, gastrocnemius guard, Achilles tendon guard, physiotherapy magnet, fixed shaft, The leggings are the main part of the present invention; the shin guard is bonded to the calf position on the surface of the leggings; the reinforced spring tube is connected between the reinforcing spring tube and the Achilles tendon guard . The arrangement of the leggings, the shin guard and the reinforced spring tube of the present invention has a simple structure, and the exercise intensity is easy to adjust. It is a prop for wearing, easy to carry, strong in safety and protection, and will not cause convulsions, spasms, soreness, etc., and is convenient for the market. promotion and application.