Based on the generic safety assessment process and using the "IMRES" system and the "SACS Structural Analysis Software", the methods and ideas of structural safety assessment for the in-service offshore platform are introduced briefly. 本文介绍了采用海洋平台结构检测维修及安全评定(IMRSE)系统和SACS结构分析程序,对在役海洋平台进行结构安全评估的方法和思路。