Repeatedly-usable glass chip model

The invention discloses a repeatedly-usable glass chip model. The repeatedly-usable glass chip model comprises an upper clamping plate, a lower clamping plate, a glass chip, a sealing ring and a pressing sheet, wherein the upper clamping plate and the lower clamping plate are used for clamping the glass chip, the sealing ring and the pressing sheet between the upper clamping plate and the lower clamping plate by thread holes; gas is inflated into a gas inlet so that the pressing sheet is expanded outwards to press the glass chip against a concave surface; sealing glue is sprayed on the bottom face of the concave surface or a sealing gasket is arranged on the bottom face of the concave surface to form a sealed flow channel with the glass chip. The repeatedly-usable glass chip model is compact in structure and convenient to use; the different glass chips can be replaced to meet different experiment requirements and the same glass chip model can be used for carrying out a performance experiment on different fluids; when the flow channel is blocked, the flow channel can be dredged by a simple method.