Minimally invasive surgery is mostly advocated for patients with early stage femoral head necrosis without collapse. Minimally invasive treatment in the traditional sense – medullary core decompression uses 10-15mm hollow drill to reach the subchondral bone of the femoral head under the guidance of a guide needle and fluoroscopic detection, then remove the member column and use a scraping spoon to scrape away the dead bone through the bone Thule followed by bone grafting. Recently, methods such as tantalum rod implantation and memory alloy scaffold implantation have emerged, aiming to strengthen the support effect and prevent the appearance of collapse. In recent years, many publications have reported that simple decompression with a fine needle of 3 mm Stiletto is simple and easy to perform, while decompression with multi-directional drilling has the effect of both reducing intraosseous pressure and improving circulation, as well as disrupting the sclerotic bone barrier and thus promoting the extension of bone repair to the necrotic area. In the treatment of early necrosis without collapse of the femoral head, there are significant differences in the efficacy of various treatment methods. Therefore, the authors recommend the simple and easy to use method of simple fine needle multiple needle medullary; turning saline compression. It is especially a safe and effective treatment for patients diagnosed at age 50 years or older or with systemic disease that is still unstable.