Recording attack prevention voiceprint recognition method and device and access control system

The invention discloses a recording attack prevention voiceprint recognition method and device and an access control system. The method comprises the following steps of obtaining an audio to be detected; extracting a first MFCC feature vector, a first GFCC feature vector and a first CQCC feature vector of the audio to be detected; synthesizing the first MFCC feature vector, the first GFCC featurevector and the first CQCC feature vector; obtaining the first acoustic feature vector of the audio to be detected; performing matching degree comparison on the first acoustic feature vector, a recording acoustic feature model obtained through the training by an SVM classifier in the preset training template base and a real voice acoustic feature model; judging whether the first matching degree ofthe first acoustic feature vector and the recording acoustic feature vector model is greater than or equal to the second matching degree of the first acoustic feature and the real voice acoustic feature vector model or not; if