本文推出的总能系统模拟分析联立模块新算法结合了序贯模块法和联立方程法的优点、缓解了它们的缺点、提出的两级三类模型建模思想，既能充分发挥联立模块法的优点，又能较好反映系统复杂的流体网络特性。本文构思了求解过程主要手段与技巧：初植获取，方程组降维，求解方法与步骤。实例研究表明所开拓的新算法是可行、实用的，对复杂系统模拟分析时优势明显． In this paper, the new algorithm of total-system simulation and analysis simultaneous module combines the merits of sequential module method and simultaneous equation method to alleviate their shortcomings. The proposed two-level and three-class model modeling idea can not only give full play to simultaneous The advantages of the modular method, but also better reflect the complex system of fluid network characteristics. This article conceives the main means and techniques of solving process: acquisition of initial plant, dimensionality reduction of equations, solving method and steps. The case study shows that the new algorithm is feasible and practical, and has obvious advantages in simulation analysis of complex systems.