Selection of Leading Industries Based on Analytic Hierarchy ProcessTaking Agriculture and Animal Husbandry in Huangnan Tibetan Autonomous Prefecture，Qinghai Province as an Example

A industry selection index system was established through analytic hierarchy process．Data of industrial index system was analyzed．Judgment matrix of industrial index system was constructed, then consistency ratio was calculated based on matrix, and weight was finally determined．Relevant indexes that affect development of leading industries were selected, and value of industrial index coefficient of industry was determined through calculating relevant indexes．Ranking of all industries was obtained through comparison of industrial index coefficients to finally determines leading industries．