在海洋工程和深海探索中，水下机器人被广泛应用。由于FPSO作业海况复杂、恶劣，释放与回收ROV是影响其作业能力的重要因素。需根据作业特点及水下检测装置重量，选取最优的收放方式；搜集目标海域海况资料，分析水下检测装置在作业海域中收放过程的运动响应情况。本文以陆丰12-3油田FPSO工作舱实施作业为背景，使用AQWA软件建立FPSO与水下检测装置模型，进行水下检测装置、船舶及其系泊系统的水动力响应分析；并将其与试验值对比，计算模拟分析与试验结果较为接近，可靠性较高。最后，根据水下检测装置在最危险工况下的运动幅度，选择合适的吊臂行程。

Underwater robots are widely used in ocean engineering and deep-sea exploration. Due to the complex and harsh sea conditions of FPSO operations， the release and recovery of ROV is an important factor affecting its operational capability. We Shcald select the optimal storage and retrieval method based on the characteristics of the homework and the weight of the underwater detection device, collect data on the sea conditions in the target sea area, analyze the motion response of underwater detection devices in the operating sea area, and use the normative method to verify the structural strength of the work cabin in different states. This article takes the implementation of FPSO work cabin in Lufeng 12-3 oilfield as the background. By using AQWA software to establish FPSO and underwater detection device models， the hydrodynamic response analysis of underwater detection devices， ships and their mooring systems is carried out， and compared with experimental values. The simulation analysis and experimental results are close and reliable. Finally， based on the motion amplitude of the underwater detection device under the most dangerous working conditions， the appropriate boom stroke is selected.