In order to research the simplified calculation method of the internal force and displacement for steel frame‐prefabricated concrete lateral force resisting wall structures (SPW system) under lateral load ,the simplified calculation model of the structural system was put forward . Meanwhile , the equilibrium differential equations of the structural system were established according to the elastic theory ,and the parameter λstanding for structural lateral stiffness was proposed .Then ,based on boundary conditions ,the calculation formulas of internal force and lateral displacement were deduced under uniform lateral load ,inverted triangle lateral load and top‐concentrated lateral load .The reliability of the simplified calculation method was verified by finite element method ,and the error analysis was carried out .The study results show that the results of simplified calculation method are close to those of finite element method ,the simplified calculation method can calculate internal force and displacement of SPW system under lateral load with enough accuracy and better reliability .%为研究水平荷载作用下钢框架‐预制混凝土抗侧力墙装配式结构体系（S P W体系）内力和位移的简化计算方法，提出了结构体系的简化计算模型，根据弹性理论建立结构体系的平衡微分方程，提出反映结构侧向刚度的参数λ，结合边界条件求解了在均布侧向荷载、倒三角侧向荷载和顶部集中侧向荷载作用下结构体系的内力与侧向位移计算公式，采用有限元法对简化计算方法的可靠性进行了验证，并进行了误差分析。研究结果表明：有限元分析值与简化计算值较为接近，简化计算方法能够较为准确地计算SPW体系在水平荷载作用下的内力和位移，可靠性较好。
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