Result have been obtained from the field experiment and study for putting up small shed on ginseng in 1982—1985.It has turned out to be:1.Ground temperature has been raised 2—6 ℃ by putting up small shed on ginseng.The date of emerqence was ahead for 7—8 days.Soil moisture content was kept on 40—60% suitable range, and also prevent ginseng from freeze injury when marked drop in temperature, getting warm in early spring and harm of late frostbite.2.Increase of yield was obviously by putting up small shed on ginseng.Usually, there was a yield increase of 13.4% as against that of the shed of single light through, and an increase of 29.6% as against that of the shed of no light through, and the rate of dry doods of ginseng has raised 3%.3.The nutritive composition of ginseng for putting up small shed on ginseng is the same as other kind of sheds.4.The economic effect was very large as putting up small shed on ginseng.It raised value 20.1—48.8% as much as other kind of sheds. 5.The main operating for putting up small shed on ginseng is the following:take away soil on ginseng’s ded;The shed has been put up and closed up right;Adaplation to local conditions;Early begin putting up small shed on ginseng in good time;Ventilate the shed in time;Temperature control;Take away plastic film on time, then put it on ginseng shed; in order to make it become a shed of single light through.