According to the recent trend for developing natural resources, the high-technology equipment on the exploration ships is getting more technologically advanced. One of the high-technology equipment is the ROV launch and recovery system(LARS). ROV LARS is essential equipment of drilling system package for offshore plant. In this study, the telescopic boom crane is divided into two parts, umbilical winch and telescopic boom crane, and it is respectively designed three dimensional models using CATIA. And, dynamic simulation and structural analysis are performed using ANSYS. In the results, the strain is identified and some stress is concentrated, but the strain is very small and the maximum stress value is lower than the allowable stress. Thus, the structure does not have any impact on the strain and stress, and it is determined that the structure is safely designed. The results ensure reliable design methods and it will be utilized in the domestic localization of ROV LARS. Also, these results will be used for future ROV LARS new design technology development.