This paper researched the analysis of continuous curved girder bridges by using of Transfer Matrix Method. And it also has the merit of using of personal computer because it has less memory than finite element method and matrix analysis. This paper analyzed the curved girder bridge by means of transfer matrix method and compared with exact solution, stiffness matrix method and finite strip method. Highway specification prescribed the theory by means of torsional constant ratio of straight bridges, but curved bridgrs did not. Thus this paper proposed the specification item by means of torsional constant ratio of the curved bridges. The using range of pure torsional theory in curved girder bridge analysis by the torsional constant ratio is that ${kappa}=10+35{Phi}$ at angle ${Phi}$is 0<${Phi}$<0.5 and ${kappa}=27.5$ is at 0.5<${Phi}$.