The invention provides a range finding method and device, computer equipment and a computer readable storage medium; the method comprises the following steps: capturing an operation order, aiming at an object target, sending a supersonic wave to the object target, receiving a supersonic wave return wave, recording a time difference between the supersonic wave emission and the return wave reception, and calculating to obtain the distance between the intelligent terminal and the object target. The method uses the supersonic wave range finding principle; a supersonic wave emitter and a supersonicwave receiver are integrated in the intelligent terminal; said structure is connected with a supersonic wave emission module and a supersonic wave reception module in the intelligent terminal, thus using the intelligent terminal to control the supersonic wave so as to realize the range finding technical effects.