The present invention relates to a system and a method for supporting robotic hardware design, and the method comprises: loading a template which has information on the mechanical structure, operating mechanism, power transmission and motion data of robot modules; modifying the information for use in a simulator for further designing the robot modules; analyzing the behavior of each robot module according to respective motion data; applying the resulting data to modify each robot module according to simulation API; and controlling the selection/combination of robot parts for simulator assembly according to API and the resulting templates, databases on which robot parts are required and databases for information on selection/combination of robot parts and assembly of each robot module. The above system and method provide an optimal way to design robot hardware and reduce the time required for robot hardware design.