The invention discloses a method for indoor evaluation of the cementing quality of a cement-formation interface by using ultrasonic waves, and belongs to the cement-formation interface field. The method is operated according to the following steps: firstly, a cement-formation interface cementing model is bonded with the surfaces of a transmitting transducer and a receiving transducer of an ultrasonic device, then the head wave amplitude and the sound velocity of the cement-formation interface cementing model are measured by the ultrasonic device, finally the head wave amplitude and the sound velocity of the cement-formation interface cementing model are measured according to the method, and thus change conditions of the cementing quality of the cement-formation interface along with the curing time is determined. The method is adopted for indoor evaluation of the cementing quality of the cement-formation interface, damage on a cement-formation interface sample cannot be caused, and the sample can be used repeatedly, so as to realize determination of change conditions of the cementing quality of the cement-formation interface along with the curing time; and in addition, the method is simple to operate, good in data repeatability, and suitable for use when a lot of experiments are performed in a laboratory.