漫湾水电站是云南电网的主力电源点。确保电站的安全运行对于提高云南电网的安全可靠性意义重大。钢管和蜗壳作为特殊的薄壳压力容器，其运行条件和测试方法均有其特殊性，本文详细阐述了漫湾６号机钢管、蜗壳应力测试结果，对于其它已投入运行而需作钢管、蜗壳应力的测试分析的电站有参考价值。 Manwan Hydropower Station is the main power point of Yunnan Power Grid. Ensuring the safe operation of power plants is of great significance to improve the safety and reliability of Yunnan Power Grid. Steel pipe and volute as a special shell pressure vessel, its operating conditions and test methods have their own particularity, this article elaborated Manwan 6 machine steel, volute stress test results, for other has been put into operation for steel pipe , Volute stress test analysis of the power station has a reference value.