The analysis of the shift-share of Chonging's ten tertiary industries shows that,after Chongqing became a municipality directly under the central government,Chongqing's tertiary industries developed rapidly,department structure contributed a lot to the rapid growth of economic total,the tertiary industries ran on a certain scale.But the analysis also shows some departments' regional competitive power shift is minus.Therefore,the departments concerned should attach importance to the development of tertiary industries and work out corresponding policies to create beneficial environment for the development of the tertiary industries.