Study on evaluation method for regional technological competitiveness from the angle of methodology, define the concepts of regional innovation system and regional innovation ability and regional technological competitiveness, analysis and comparative study on merit and demerit of principal component analysis, analytic hierarchy process, data envelopment analysis and system dynamics in the regional technological competitiveness evaluation, and combine the regional development situation of Jilin province, finally, using the method of system dynamics and mathematical model of sustainable development evaluation research on technological competitiveness of Jilin province.