Abstract: Legs are one of the most important structures in jackup drilling rig, which support the hull and are directly related to the safety of platform. Based on the POD-6 jackup drilling rig, which is constructed by Shanghai Waigaoqiao Shipbuilding and Offshore Engineering Co., Ltd., we analyze the feature of leg structure, and check its strength. Besides, we study the division and assemblage of leg blocks to increase the building efficiency. At last, legs’ long-term corrosion protecting technology is also researched and applied in POD-6. The research achievements have practical reference value for constructing similar jackup drilling rigs.