In the shield construction organization design scheme, the safety special scheme and measures are very important. First, make a special safety plan according to the specific engineering conditions, including comprehensive evaluation and analysis of possible safety risks in the construction process, and determine the corresponding safety management measures and emergency plans. These schemes cover all the links during the construction period, such as tunnel excavation, soil treatment and supporting structure installation. , to ensure the safety in the construction process. Secondly, safety measures are specific operation steps and methods, which are used to implement the safety management measures determined in the special safety plan. This includes safety protection facilities in construction sites, safety training and supervision of operators and safe operation of equipment. By strictly implementing special safety schemes and measures, the accident risk can be minimized and the safety of shield construction can be guaranteed.