In order to overcome that it is difficult to realize the control resulted in poor robustness of control algorithm for complex correlation system with uncertainty, the paper explored the robustness of human-simulated intelligence based fusion control algorithm. In the paper, it discussed the facing challenge of conventional control, analyzed the cybernetics characteristic of complex correlation system with uncertainty, researched on control strategy of human-simulated intelligence based fusion control strategy, and aimed at the specific object it constructed the corresponding control algorithm. It took a two order object with time lag as an example, carried through the simulation contrast research respectively by conventional PID and human simulated based fusion control algorithm, and the experiment response curve of system demonstrated that the proposed control algorithm validated its better dynamic and static control quality and strong robustness. The research results show that it is feasible and reasonable for fusion control algorithm, and owns strong robustness.