Background: Objective: To explore practical, simple, and less complications method of iliac cut. Methods: A retrospective analysis of 23 patients with iliac bone taken between the June 2011-June 2013. Using "windowed iliac fossa" to cut single or double cortex ilium, then count donor site complications and related factors. Results: There is no abnormal appearance at the taken sit of the iliac, also there is no local pain or tenderness touch. The skin feeling of hip and thigh are normal, the VAS is 7-9, the department of belt are also unaffected. Conclusions: As an improved method of bone taken in the autogenous bone graft, the complications of "windowed iliac fossa" decreased significantly than the traditional method, as a new methods of iliac cut, which is worth popularizing in clinical practice.