Provided is a protective device applicable to a lower limb fracture patient, comprising a foot protecting device (1), a leg protecting device (2) and a connecting cloth cover (3), the leg protecting device (2) and the foot protecting device (1) are connected through the connecting cloth cover (3), the foot protecting device (1) comprises a foot protecting cover (11) and a shoe upper (12), the bottom of the foot protecting cover (11) and the top of the shoe upper (12) are sewn, a fastening device (5) is fixedly arranged inside the shoe upper (12), and the fastening device (5) and the lower end of the foot protecting cover (11) are connected through an elastic cord, a fixing device (61) is arranged at the lower end of the shoe upper (12), the fixing device (61) and the fastening device (5) are connected through an elastic cord, a fastening cooperation device (7) is arranged at the bottom of the shoe upper (12), the fastening cooperation device (7) is inserted into the fixing device (61) and the fastening device (5) inside the shoe upper (12), and an air bag is sewn at the outer side of the foot protecting cover (11)； in the device, the air bag can improve the comfort level of the patient, the fastening device (5) can constrain the lower end of the foot protecting cover (11) to achieve the function of taking the foot back, elastic and automatic release can be performed through the elastic cord, the fastening cooperation device (7) can achieve automatically taking the foot back, working pressure of medical workers is relieved, a base (71) is coated with a protective layer, and the service life thereof can be prolonged.La présente invention concerne un dispositif de protection pouvant s'appliquer à un·e patient·e ayant une fracture de membre inférieur, comprenant un dispositif de protection de pied (1), un dispositif de protection de jambe (2) et un recouvrement de tissu de connexion (3), le dispositif de protection de jambe (2) et le dispositif de protection de pied (1)
