Abstract: To improve the efficiency of tubular handling on offshore platforms（especially on dual wellhead operation platforms）, a drill floor manipulator arm was developed. This manipulator is an automated tubular handling device that can be operated from the driller’s cabin, local equipment station, or remote control panel. The paper focuses on the overall design scheme electrical system design, and the hydraulic system design of the drill floor manipulator arm. Additionally, the finite element analysis software was employed for verification calculations of the equipment. The results show that both the design scheme and structural strength of the equipment meet the requirements, providing a valuable reference for further research on the drill floor manipulator arm used on offshore platforms.