Indoor experiment model and method for predicting slope displacement

The invention relates to an indoor experiment model for predicting slope displacement. The indoor experiment model comprises a model box and a data acquisition system, the model box comprises an inclined plane section with a specific inclination angle, and an upper plane section and a lower plane section which are respectively connected with two ends of the inclined plane section and are horizontal; a soil body model is arranged in the model box; the gradient and the soil compaction degree of the soil body model are equal to the gradient and the soil compaction degree of the slope to be predicted; the inclined plane section, the upper plane section and the lower plane section are made of transparent organic glass, and the upper parts are open; a spraying device is arranged above the model box, water is evenly sprayed to all parts of the soil body model through the spraying device, and the spraying amount is recorded; the data acquisition system comprises sensing equipment, image acquisition equipment and a ho