Marine stationary platforms and underwater pipelines are located in the territorial waters of Ukraine and provide gas and condensate production. Keeping them in working condition is one of the main tasks of the operation. Robotic tools can significantly increase the efficiency of such work. Methods of analysis and a system approach were used to formulate the tasks of creating specialized robotics tools. As a result of the analysis of modern technologies for monitoring the technical condition of stationary marine engineering facilities, their classification was proposed according to the criteria of the effectiveness of new unmanned technologies based on surface and underwater marine robots. For each type of engineering structure, a list of typical works that can be performed by marine works in remote control modes by the operator or fully automatically is proposed. The main works include: Based on the classification, a three-dimensional matrix, “Object–Work–Efficiency” is proposed, which shows the possibility and feasibility of using unmanned technology to operate engineering structures on the Ukrainian shelf. The architectural and structural types of surface and underwater robotics, as well as their instrumentation and instrumentation, which are necessary to effectively implement unmanned technologies for the operation of engineering structures on the Ukrainian shelf, are substantiated. The proposed three-dimensional matrix and architectural-constructive types of marine robotics tools form a theoretical basis for developing and implementing highly efficient robotic technologies for the operation of engineering structures on the Ukrainian shelf.