Based on the size data of the human body of Chinese male pilots, this article uses the standard model library of Poser software to adjust and modify the dimensions of various parts, and establishes a three-dimensional human model that conforms to the size of Chinese male pilots. Then, based on the basic geometric dimensions of the aircraft cockpit and the ejection seat model, three-dimensional software is used to establish the spatial layout of the ejection seat and cockpit control mechanism, and a static comfort simulation platform for the ejection seat is obtained. Based on the principles of human factors engineering, the layout simulation analysis of the control mechanism in the simulation platform was conducted to obtain the ejection seat control layout that meets the comfort criteria for human riding, improving the static comfort of the ejection seat. This method can be used for rapid design and optimization of cockpit layout, and has important engineering practical significance.