In order to solve the huge risk that a jack-up drilling platform was transformed into a production platform in the East China Sea, the transformation scheme is optimized through research. The optimization design for the hose routing, length and fixed scheme were carried out. The "counter-checking" method was used to make up the issue of insufficient basic data in the design. The successful application of the high-pressure dynamic hose’s connection to the process pipeline for the first time solved the issue of large and complex displacement in different directions of tree in the drilling platform due to wind, wave, flow and hydrocarbon flow temperature, and provided reference for the conversion of production function of similar offshore mobile drilling facilities.