The utility model discloses a tobacco leaf seedbed, including the big -arch shelter, builded at least one seedling pond in the big -arch shelter, miao chi constructs on the level land, miao chi's bay wall is assembled by the light material board and is constituted, miao chi's pool wall and the seamless pond membrane of having laid of bottom of the pool. The utility model discloses tobacco leaf seedbed has used the old and useless dish that floats to build, not only can reduce the wasting of resources, can also reduce white pollution to a certain extent, bad border of ecological?protection. The inventor still notices the old and useless dish that floats and not only can be applied to and build the bed, grows, all has in the aspect of preventing subterranean pest -insect and heat preservation certain effect in protective film, suppression weeds. The inventor lets the old and useless dish that floats make the best use of everything, becomes " giving up " and is " treasured ".