The study were conducted to determine the effect of extracts from mushroom culture medium and malt extract-fermented liquid supplemented with Actinomycetes No. 1 to control the Chinese cabbage seedling damping-off. The conclusion revealed that the extracts from mushroom culture medium supplemented with Actinomycetes No. 1 to control the Chinese cabbage seedling damping-off were obviously better to drenched the culture medium than to soaked the seeds. To drench the culture medium of Cabbage with the extracts from Antler ganoderma lucidum culture medium supplemented with Actinomycetes No. 1 (diluted 400 times) or Actinomycetes No. 1 liquid alone (diluted 100 times) which drenched the culture medium both had obviously effects for controlling the Chinese cabbage damping-off.