The invention relates to a biological recognition technology, and discloses a face posture detection method and device and a computer readable storage medium. The method comprises the following steps:presetting a training face image set; training a human face direction attitude angle calculation model based on a residual network according to the training human face image set; sending the receivedcurrent face image to a trained face direction attitude angle calculation model; classifying the deflection angles of the current face image in the roll direction, the pitch direction and the yaw direction into corresponding angle intervals according to the trained face direction attitude angle calculation model; and according to the trained face direction attitude angle calculation model, regressing the angle value of the angle interval corresponding to each deflection angle so as to acquire three attitude angles of the left side attitude, the front side attitude and the right side attitudeof the current face image.