The winding screen outside the base pipe of the water filter pipe is a common measure to maintain the production capacity of the sand geothermal well.To study the influence of the screen accuracy, number of layers, and cloth netting mode on the production capacity of the geothermal well, simulation test is carried out.The simulation experiment of the effect of arrangement and placement order on the production capacity shows that the screen accuracy is the main factor affecting the sand-suppression effect when the single-layer screen is used;when the screen accuracy is fixed, the number of layers corrects the sand-blocking accuracy and its impact on sand-suppression is greater,and the impact on the permeability and sand content is less;when the two or three screens are used, the outer layer with high-precision screens has better sand-resistant effect,which provides a basis for optimizing the sand control process for geothermal wells.