Data processing method and computer aided design system for shaft retaining structure

Disclosed are a data processing method and a computer aided design system for a shaft retaining structure. The method and the system are in favor of quickening construction cycle and guaranteeing construction quality of shaft enclosure in thermal engineering. The method is characterized by including: 1, newly establishing a shaft retaining engineering template or opening an existing shaft retaining engineering template on a computer platform; 2, inputting shaft retaining structure data chosen or determined by a designer; 3, displaying a shaft retaining structure graph, and judging input correctness of the shaft retaining structure data; 4, performing structural calculation; 5, if calculation results of the structural calculation do not meet design requirements, repeating step 2 to step 4 until obtaining the calculation results meeting the design requirements; and 6, determining or drawing a shaft enclosure construction graph according to the calculation results meeting the design requirements, and outputting the shaft enclosure construction graph by utilizing a script file generated in AutoCAD (auto computer aided design).