An embodiment of the present invention discloses a projection touch control method, device and equipment, the method comprising: receiving reflected light of an invisible laser to determine an intensity of the reflected light, receiving a reflected signal of an ultrasonic pulse signal to determine an intensity of the reflected signal; upon a change occurring in the intensity of the reflected light, determining a touch-control position coordinate of a touch-control object; obtaining a touch-control trail formed by the determined touch-control position coordinate within a target duration, receiving a time sequence and the intensity of the reflected signal of the ultrasonic pulse signal according to a transmission time of the ultrasonic pulse signal, so as to determine a distance between the touch-control object and a projection area; determining if the distance is less than a preset threshold; and if so, responding to a touch-control motion corresponding to the touch-control trail. By utilizing the intensity of the reflected light to determine the touch-control position coordinate, and utilizing the ultrasonic pulse signal to determine the distance between the touch-control object and the projection area, the touch-control motion can be determined quickly and accurately, thus significantly increasing the accuracy of projection touch control.
PROJECTION TOUCH CONTROL METHOD, DEVICE AND EQUIPMENT