Abstract: With Bainong 207 as experimental material，four kinds of seed coating agents，35% chlorfenapyr·methyl cream，31.9% pentazole·imidacloprid，12% pyrazole·fungicide and 12% thifenapyr·phenylether suspension coating agent，were selected to study germination characteristics and seedling growth characteristics of wheat by indoor germination test and field test，with clear water as control.Results of indoor germination test showed that seed coating could improve germination rate of seeds，but reduce germination potential and germination index，and significantly improve transport capacity and rate of seed storage materials.Field experiment showed that root length，surface area，volume and number of root tips of coated wheat seedlings were better than those of the control，seedling quality was better，dry matter accumulation was more，leaf color was dark green，and photosynthetic characteristics were better.Results showed that the best treatment effect was 12% thifenitrile phenethyl suspension seed coating agent.