The invention provides a face detection method and device, equipment and a computer readable medium, and relates to the technical field of image recognition. The method comprises the steps of obtaining actual position information of multiple face images detected by front k times of face detection, wherein k is a positive integer larger than or equal to 2; according to the actual position information detected at front k times, predicting predicted position information of the face images during the (k+1)th detection; according to the preset threshold range corresponding to the number of face images with the predicted position information meeting the preset conditions, determining a target frequency, and then adjusting the detection frequency to the target frequency. According to the face detection method and device, the equipment and the computer readable medium, the technical effects that the face detection efficiency can be automatically adjusted according to the predicted position information of the face images in frame images, the system computing resources are saved, and energy consumption in face detection of video flows is lowered are achieved.