The purpose of this study is to propose a systematic solution for the displacement method and the forced method, based on the kinematical and statical relation equations of a space truss. A simple algorithm is chiefly used for calculating the displacement method. On the other hand, Because it is necessary to remodel a statically indeterminate structure to a statically determinate principal system, the force method is unsuitable for analyzing complex structures. In this paper, the force method will chiefly be described using the general inverse matrix. Moreover, by using the proposed analytical technique it is easy to structure an algorithm.