The synthesis of mechanisms for rigid body guidance consists of designing the suitable mechanism for a given prescribed movement. For more than three coupler positions, whenever a synthesis problem is solved by using graphical method, it is tedious to obtain the center point curve and circle point curve. Particularly, this work deals with the problem of synthesis of mechanisms for four and five positions generation problem. In the present work, the foundation of a computer technique is to be designed and developed the computer simulation package for synthesis of mechanism for rigid body guidance problem, which also visualizes the graphical display of four bar linkage for position synthesis problem and proves the method to be feasible and result is validated. The computer program is developed based on mathematical model which consists of nonlinear simultaneous equations which are solved by numerical iterative based method. By using this program, the graphical errors have reduced and obtain the number of accurate center points and corresponding circle points, which has given satisfactory design of four bar linkage.