Objective This study is designed to analysis circumstance that connector provdes for humerus,to analysis stress interfere when the connector is applied to humerus cure,and fo analysis stress enviroment according to bone-remodeling. Methods Three dimensional finite element methods is applied to calculats three-dimensional-finite-element model of humerus and connector. Resuls The section of catagmatic humerus always gets three dimensional stress.Shear stress cannot lead destruction of humerus.The bone produces very little distortion.Connector has four sections in which the strain reachs higher value. Conclusion Because of providing continuing stress,connector cannot bring interfere for loads.This improves stress activation for humerus.