The invention discloses a three-dimensional blind tube seepage model for a toric tunnel. The model adopts a rock space seepage torus, and the circular overflowing boundary of the blind tube is designed to be a rectangular overflowing boundary, so the complex degree of the three-dimensional seepage model for the tunnel is greatly reduced; and a circumferential blind tube overflowing boundary is accurately physically simulated, so the three-dimensional seepage field of the tunnel provided with the circumferential blind tube can be easily and conveniently solved, thereby the external water pressure applied to the outer edge of a tunnel concrete lining, the water discharging capacity and the waterpower gradient of the lining circumference tunnel surrounding rocks accord with the actual situation.