This article mainly aims at how to effective process various characteristic parameters for radar signal in the complex signal environment and how to solve theSidentification SproblemSof high dimensional featureSparameters, a kind ofS two levelS recognition model ofS modulation Stype Scoarse classification and comprehensive Sinformation of exactSrecognition based on hybrid Skernel function support vector machine has been putted forward. Simulation results show thatS this algorithm Shas better Srecognition effect.