Suturing is the key to the success of corneal transplant surgery.By analyzing the suturing-process of corneal,a model for suturing was established.A suturing theorietical trajectery was proposed without considering the viso-elasticity of comeal.Then,a suturing simulation was done with the ANSYS software,the manipulating trajectory was planned for corneal soft-tissue with viso-elasticity,correspondingly,and the position and posture of needle in suturing were obtained.The study can be used for suturing manipulation in cornea suture surgical.