Functional patellofemoral joint pain is very common in daily life. By functional, we mean that no clear organic lesions such as patellar instability, patellar dislocation, or patellofemoral joint cartilage defects can be seen in the MRI of the knee joint in these patients. These patients are encountered in almost every specialty clinic, ranging from young ones in their 20s to older ones in their 50s and 60s, with a predominance of females, with a high prevalence among nurses around us. There are many causes of patellofemoral joint pain, and the most common and difficult to treat is chondromalacia patella. Chondromalacia patella is a painful condition resulting from degeneration of the patellar facet. The exact cause of the condition is not clear, so there is no very strong target for treatment. In the past, we have tried various treatments such as physical therapy, acupuncture, glucosamine, and closure, but the follow-up results found that the efficacy was very inaccurate. As the exploration of the treatment of chondromalacia patellae continues to deepen, it is gradually found that standardized quadriceps functional exercises can effectively relieve the symptoms of patellofemoral joint pain. Recently, during my study abroad, I found a set of standardized quadriceps rehabilitation exercise program, which I would like to introduce to you, but the specific rehabilitation program still needs to be communicated with the sports trauma and arthroscopy ward specialists to determine, and do not blindly exercise.