Deep submersibles are the “magic weapon” for entering, exploring, developing, and governing the ocean. Their technological level and development directly affect our deep-sea rights, especially in the fields of structure, sensing, dynamics, etc. The advanced level of submersibles greatly represents the development level of deep-sea technology, and has always been the “bull’s-eye” pursued by countries around the world for competition. The article focuses on the current development status of all sea deep duplex hybrid deep submersibles, and introduces the development status of ARVs at home and abroad; Based on the project, a detailed description was given of the sea trials of the 3000 m and 8000 m deep duplex hybrid submersible. Finally, based on the experience of sea trials and combined with the operational and maintenance requirements of the national deep-sea base for deep diving technology and equipment, the ARV operation mode was discussed, and the prospects for future commercial applications were analyzed.