The embodiments of the present application disclose a living body detection method and apparatus, an electronic device, a storage medium, and a payment system, a video monitoring system and an access control system which use a living body detection method. The living body detection method comprises: traversing a plurality of images of an object to be detected, and taking an image currently traversed as a current image; performing facial feature extraction on the current image to obtain a feature vector corresponding to the current image, the feature vector being used for describing the structure of the facial feature of said object in the current image; according to the change in the feature vector corresponding to the current image relative to the feature vector corresponding to a historical image in a feature sequence, capturing a behavior of said object, the historical image being an image which has been traversed in the plurality of images, and the feature sequence comprising the feature vector corresponding to at least one historical image; and if a behavior of said object is captured, determining that said object is a living body.
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