Objective Provide a new operative method to treat ischemic necrosis of navicular.Methods Based on the anatomic study, the vascularized periosteal flat of the first cuneiform bone was designed to transplant into navicular.Results Two cases were treated by transposition of this periosteal flat , the time of follow-up was over 2 years, the results were satisfactory.Conclusions The operation is not only simple but also injury is little.It is secure and reliable. [