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Indoor greenhouse cultivation celery, daytime temperature should be maintained at 18 ~ 23 °C, do not exceed 25 °C, night temperature should be maintained at 13 ~ 18 °C, not lower than 10 °C, ground temperature to 13 ~ 18 °C is appropriate. The base fertilizer should be applied adequately, and the top-dressing fertilizer in the growth period is mainly available nitrogen fertilizer. It is necessary to top-dress fertilizers and watering, not to de-fertilize, to take measures to dilute the water, and apply thin fertilizers. In the vigorous growing season of celery, water supply and fertilizer should be continuously provided, and fertilizer should be topdressed every 15~20 days. Gibberellin has the effect of promoting the growth of celery, but only when adequate supply of water and fertilizers, adequate management measures, and spraying thick celery itself, can play a role in increasing production.