A multi-project system-on-chip bench by integrating multiple system-on-chip projects into a chip, which uses a system chip bench, therefore, microprocessor, bus, embedded memory, peripheral component and input/output port is used together by those system-on-chip projects and the average cost of each system-on-chip is thus reduced. Moreover, this invention proposes a design method for multi-project system-on-chip bench, it let the user can effectively manage available data and verification environment in each design process flow hierarchy and in turn an easy-to-use design process flow is thus derived.