In recent years, the technology of soaking and seeds fattening has been applied in agricultural production of corn in cold area, and those two technology has been achieved good economic and social benefits. In order to study on the suitable seed soaking agent and seed dressing agent of the corn in Hulin area, in this paper, five kinds of soaking, seed dressing reagents of corn in cold area has been applied. The results showed that, the yield of plant cold-resistant agent increased significantly, the increase rate was 15.9%; the second yield increased was the treatment of carbon 2%, the increase rate was 7.8%. In seed fattening test, the yield of OMES311 treatment increased significantly, the increase rate was 10.2%; the second yield increased was the treatment of carbon 2%, the increase rate was 9.7%.