Abstract: To solve the difficulties in technical implementation of training seedlings in moisture trays after water-break, and the problem in not strong tobacco seedlings, a comparison test to the conventional seedlings and seedlings planted with clean-water was carried on, the results showed that, compared with the conventional seedling transplanting, the seedlings planted with clean-water and transplanting in advance time, the labor of seedling cultivation was reduced, the survival rate was similar after transplanting, seedling returning-green rate was 1-2 d faster, seedbed period shortened by10-20 d, field growth period prolonged by 5-14 d; incidence and disease index of flue-cured tobacco weather fleck and mosaic were low; the yield and economic benefit increased; middle and top fine tobacco ratio increased by 3.1-3.6 percentage points.