The invention relates to an implementation method of a wrist band capable of monitoring conditions of joint damage. The implementation method comprises the steps that after a user wears the wrist band, the bending acting force and the bending angle of the deformation of net-shaped elastic materials when a joint is twisted are measured, and data of the bending acting force and the bending angle are obtained; the data obtained by the above measurement are stored, and a model is built according to the data; the user wears the wrist band to do movements, and the bending acting force and the bending angle of the deformation of the net-shaped elastic materials are measured continuously to obtain the data of the bending acting force and the bending angle; the built model is used for monitoring whether abnormal conditions occur or not when the user does movements; if the abnormal conditions occur when the user does movements, an alarm is sent. The invention further relates to the wrist band capable of monitoring the conditions of the joint damage. The wrist band capable of monitoring the conditions of the joint damage and the implementation method thereof can monitor the conditions of the joint in real time, and send the alarm in time when the abnormal conditions of the joint occur.