Objective To study the stress distributions of the surrounding bone during the dynamic implantation of micro-implants, a finite element model of self-attacking micro-implant dynamic implantation was proposed and established. Methods A three-dimensional (3D) oral model was constructed using CBCT data. The local model around the implant and the 3D finite element model of the micro-implant were established using ABAQUS software. The micro-implant was implanted into the jaw with an axial propulsion force of 40 N at a constant speed of 0.5 r/s. Results A 3D finite element model was successfully established to simulate dynamic self-attacking orthodontic microimplant implantation in The jaw bone. The implantation stage and thread position affected the jawbone stress. The maximum stress on the cortical bone was 167 MPa, and the maximum stress at the stable stage was approximately 50 MPa. The maximum stress on cancellous bone was 30 MPa. Conclusions The implantation stage and thread position have apparent influences on stress distribution. The stress difference between the cortical and cancellous bones was evident. The stress characteristics can judge the bone type, and whether the jaw is in a suitable implantation state can be judged by the bone stress distributions around the implant.