Abstract: The type of special-purpose inducer No.1 and No.2 were fully mixed with Honghuadajinyuan tobacco seedlings, then the effects on tobacco seedling were illustrated by the investigation of seedling height, stem diameter, dry weight, leaf area, maximum germination rate, leaf number, shoot fresh weight, underground fresh weight, shoot dry weight and dry weight of underground part. The results showed that the sample of No.1 and No.2 could be used to promote the growth of tobacco seedlings, especially for the rapid increase in height of tobacco seedling when the organic inducer amount of No.1 and No.2 was 0.2 g/s. Compared with the common organic inducer, the inducers of special-purpose type were more conducive to the growth of tobacco seedling in floating seedling raising and to improve the quality of tobacco seedling.