中国税收征管信息系统简称CTAIS（China Taxation Administration Information System），是由国家税务总局和联想神州数码有限公司联合研制开发的城市级税收征管信息系统。它以基层税收征管业务为核心、以城域网建设为背景，可在全国地市、区县级国家税务机关推广使用。一、系 China Tax Administration Information System (CTAIS) is a city-level tax collection and management information system jointly developed by the State Administration of Taxation and Lenovo Digital China Limited. It takes the grass-roots tax collection and management as the core, with the metropolitan area network construction as the background, and can be promoted and used in the national tax authorities at the prefectural, prefectural and county levels. A series of