Pain behind the knee can be treated by the following methods: First, if the knee joint osteoarthritis, resulting in joint capsule contracture, the patient will have pain behind the knee, at this time should be injected into the joint cavity of sodium vitrate, and with the rehabilitation training, can alleviate the local contracture, reduce the pain symptoms. If the symptoms are more serious, conservative treatment is ineffective, we need to consider artificial knee replacement, and loosen the local scar, can relieve the posterior knee pain symptoms. Second, if the knee meniscus damage occurs, especially the pain caused by the posterior horn damage, arthroscopic minimally invasive surgery should be considered to suture the meniscus or trim the meniscus, remove the primary lesion, can also alleviate the clinical symptoms of posterior knee pain. Posterior knee pain should be taken seriously, and it is best to perform an MRI of the knee to further confirm the diagnosis and early treatment.