Jet impinging technology is put forward to remove the ice on the road.The vapor jet with certain temperature,pressure,and flow is injected through several small nozzles to icy road.The ice is warmed or even melted,thus separated from the road and then are pushed away by a forklift truck.The softwares named Gambit and Fluent are used to establish numerical model and study the de-icing efficiency with different nozzle distribution patterns in same area.Results show that the de-icing efficiency is improved with the increase of jet nozzle number,which can reach 24 km/h with 8 nozzle pattern.Yet the increase of de-icing efficiency is not in linear relationship with increase of the nozzle number,thus an optimal value of nozzle number is needed to choose.