The invention discloses offshore platform partition skid integrated type inorganic membrane oily sewage fine treatment equipment. The equipment is composed of sub-skids with different functions, and comprises a tank body skid, a pump skid and a plurality of filter unit skids. Different sub-skids are integrated into a whole through a common pipeline, and the dimension of the sub-skids meets the installation in-place and replacement requirements of the skids. The pump skid and the filter unit skids are provided with skid internal wiring boxes. A slideway beam is assembled on the top of each filter unit skid, wherein the slideway beam is integrated in a platform steel structure and used for hoisting a membrane assembly. The construction mode of partition skid construction, sub-skid assembling and integral construction is adopted for the equipment. The structure of membrane equipment is optimized through the partition skid design, the construction difficulty of the offshore platform membrane equipment is lowered, the requirement for offshore platform oily sewage fine treatment is met, and meanwhile convenience is provided for transformation of existing platform technology equipment.