Abstract: The clinical application of mini-implant in dentistry. LI yao-qin ,Hu Jian（Institute of Stomatology,Nanjing Medical University,Nanjing 210029 China） Abstract:With the rapid development of implant，the mini-implant has obtained good clinical results, which led to expanded use in orthodontic anchorage, and long term fixed and removable prosthrtics.This article reviews details of backgound,the clinical application，the complications and the prospect.