The results of seedling experiments of vermicompost extracts showed that the physicochemical properties ofvermicompost extracts with different concentrations showed gradient changes，which had different effects on seedling growthand development.Compared with the pure inorganic nutrient solution system，the vermicompost extract increased theabovegroundgrowth，root growth andvigor，seedlingindex，chlorophyll content and antioxidant enzyme activity oftomato，pakchoi and rice seedlings to different degrees.Among them，the application of the concentration of 7.5% vermicompostextract was the best；with the increase of the concentration of the leaching solution，the salt concentration increasedcorrespondingly，which inhibited the growth ofseedlings.Insummary，the addition of 7.5% concentration of vermicompostextract in inorganic nutrient solution can promote the growth of seedlingsdifferently，and has a good effect onseedling，which lays a theoretical foundation for the application of vermicompostextracts.