This paper uses 2002-2014 data and coupled coordination model to study their coordination and evolution between urbanization and eco-environment in Qiannan prefecture with results showing a rising urban comprehensive evaluation index and a descending eco-environment comprehensive evaluation index in Qiannan during 2002 to 2014. Its urbanization accelerates after 2009. Their coordination between urbanization and eco-environment in Qiannan is improving, but of staged difference, much influenced by fixed asset investment and industrial development. Issues exist like a low third industrial development level and insufficient eco-environmental protection. This study provides references for the sustainable development of society and economy in minority areas.