The utility model relates to a physical weed suppressor, which comprises a platform, two guide wheels and two rollers are arranged at the lower side thereof, a power source is arranged on the platform for driving the guide wheel, a static support frame is arranged in the platform, a heater fixing frame is arranged at the front of the platform, an infrared heating device is fixed on the heater fixing frame, which is kept at a height with the ground. The infrared heating device can heat the weeds on the ground and inhibit the growth of weeds.一種物理性雜草抑制器，其包括：一架台，其下方側邊設置兩引導輪，及兩滾輪；一動力源，設置於該架台上，用於傳動該引導輪；一靜置支撐架，置於該架台中；一加熱器固定架，設置於該架台前方；一紅外線加熱裝置，固定於該加熱器固定架，與地面保持一高度；藉由該紅外線加熱裝置對地面雜草加熱，抑制雜草生長。
