The invention discloses a bridge plug with low pumping friction resistance for a horizontal well, and a using method thereof. The bridge plug comprises a ball seat, a sealing rubber cylinder, a setting cylinder, idler wheels, a slip and a salvage base; the lower end face of the ball seat is connected with the sealing rubber cylinder; the upper end face of the setting cylinder is sleeved with the sealing rubber cylinder, and the lower end face of the setting cylinder is sleeved with the slip; the idler wheels are arranged on the outer wall of the setting cylinder; the lower end face of the slipis connected with the salvage base; and a through hole penetrates through the centers of the ball seat, the sealing rubber cylinder, the setting cylinder, the slip and the salvage base. The bridge plug is simple in structure, and an operating method is simple and convenient; through the idler wheels on the setting cylinder, moving of the bridge plug on the horizontal section is changed from large-friction-resistance transverse sliding into low-friction-resistance idler wheel rolling, thus the good effect of lowering the pumping friction resistance is achieved, and the pumping efficiency of the bridge plug can be improved; and certain passing capacity to resist casing deformation is achieved, and the risk of tripping in of the bridge plug due to casing deformation is reduced.