In this book a new design of insect bioinspired robot has been proposed. The main focus of this research is to analyze the stability of insect robot in different motion pattern through studying the center of gravity variations. The basic design has been done by CATIA software based on the biological model of Arthropods. A hydraulic three segmented model has been used for modeling each jointed legs and the three dimensions of ball and hinged joint has been used for increasing the degree of freedom for the robotic system. Various random gait patterns have been used for modeling an insect stability during gait. During these random patterns the robot stability has been analyzed by studying the center of mass changes in ADAMS software.