In this paper

we make a statistical analysis on the GDP data of Xinjiang Province of China during 1990—2012

and then the index equations for the economy of Xinjiang are established.By a significant statistical analysis

we obtain that the development speed of the primary industry and tertiary industry keeps equilibrium

but both are below the average development level of economy in Xinjiang

the second industry development is rapid

above average GDP proportion.If Xinjiang economic development model is constant

according to the regression equation

in 2007

after five years

Xinjiang regional GDP will reach nearly 1.6 trillion

the production value of the first industries will be 0.24 trillion

secundiparity gross comes up to 0.88 trillion

the tertiary industry will be 0.54 trillion

secundiparity gross reached more than half of GDP

the development levels of the three industries in Xinjiang will be unequal.The local government should take some corresponding policies to balance the economic development of Xinjiang.