Propagation　properties　of　one-dimensional　photonic　crystal　with　oblique　incidence　are　simulated　and　analyzed　using　precise　integration　method　in　the　paper.　The　variational　principle　based　on　the　single　variable　in　conditions　of　the　oblique　incidence　is　derived.　Then,　the　dual　variables　are　introduced　and　the　equations　are　derived　to　the　Hamiltonian　system　formulation.　A　precise　integration　method　based　on　the　Riccati　equations　is　used　to　generate　the　export　stiffness　matrices.　The　problem　can　be　solved　by　merging　the　export　stiffness　matrices　and　using　the　boundary　conditions.　Numerical　examples　demonstrate　the　high　accuracy　and　efficiency　of　this　method　for　solving　problems　of　transmission　property　of　one-dimensional　photonic　crystal.