Abstract: The main design ideas of the visibility plan in the semi-submersible offshore floating platform are introduced. By analyzing the relevant conventions of the “SOLAS”, the influence of two factorsie., the design of the window structure and the obstacles in front of the wheel house, on the vision are studied emphasizing the importance of the vision to the safety. Besides, the contents that can be improved and optimized are discussed. Moreover, with the analysis of successful examples about solving wheel house vision problems, some related issues are further introduced.