The utility model discloses a modularization ocean multifunctional work platform, including lower part part dip the floating structure below the sea level and set up in the platform structure of floating structure top surface, platform structure includes the frame construction that the level set up, the footboard has been laid to the frame construction top surface, floating structure include the top with a plurality of cabins body that frame construction links to each other. Compared with the prior art, the utility model discloses technical scheme's modularization ocean multifunctional work platform has standardized production, nimble changeable and function characteristics such as abundant, consequently can carry out the optimal design in structure and function to the ocean operating platform.