As an important basic equipment for deep-sea scientific research, the ultra long columnar sediment sampling system has played an important role in research fields such as seabed topography, marine geological structure and climate and environmental change. At the same time, it has realized great application value in seabed mineral resources exploration and marine engineering geological exploration. Aiming at the problems of blind sampling, great potential safety hazards and limited deck working space in the operation of the traditional ultra long columnar sediment sampling system, a new set of deep-sea ultra long controllable visual sediment columnar sampling system is developed. The system realizes the functions of hydraulic hammer, vertical retraction and real-time monitoring, and can obtain continuous, ultra long Columnar sediment samples with attitude and orientation information. By optimizing the key technical details such as cable arrangement mode, sample tube disassembly, sample anti falling off and sampling cutter head, the problems of large sample disturbance and low sampling rate are solved, the sampling operation efficiency and sample quality are greatly improved, and the operation safety risk is reduced. From 2017 to 2021, the sampling system carried different mother ships and successfully obtained 15.25 m, 16.01 m and 15.83 m long columnar sediment samples in the South China Sea, which provided valuable sample support for the research of marine science related issues in the region. The mature application of the equipment will help to improve the development level of deep-sea exploration technology and equipment in China.