An evaluation index system was established for Shaanxi Province which consisted of low-carbon system and development system about low-carbon economy, and the level and coordination of Shaanxi Province from 2003 to 2011 were evaluated using the model of entropy, catastrophe progression and coordinate. The results showed that the relatively level of the year from 2003 to 2006 was "unacceptable", that of the year 2007 was "average", and that of the year from 2008 to 2011 was "well". The level of ecological protection was obvious progress and the effect of technology to low-carbon economy was gradually highlighted, while industrial and energy structure was unstable in the development process of low-carbon economy in Shaanxi Province. Low-carbon system and development system in Shaanxi Province was antagonistic during the study period. During the 12th Five-Year Plan, it may enter the basic coordination phase and promote the development of low-carbon economy.