To build up Baotou social Insurance system (SIS) is key issue regarding to the benefits of total 2 million citizens of Baotou as well as to its reform, development and social stability, and well-built SIS meets the demand of the 3 stand for by president Jiangzemin. Following the state general policy and based on the local special conditions, the Baotou SIS is recommended in this paper which aims one hand to resolve some critical issue occurred in recent years, such as more workers are getting off their posi...