The present disclosure provides a living body detecting method and apparatus, a device and a storage medium. The method comprises: regarding a to-be-detected user, respectively obtaining a first picture and a second picture taken with two near infrared cameras and a third picture taken with a visible light camera; generating a depth map according to the first picture and second picture; determining whether the user is a living body according to the depth map and the third picture. The solution of the present disclosure can be applied to improve accuracy of detection results.