A ecological vegetable freshness-preservation method and an ecological vegetable freshness-preservation and growing case. The method comprises: a nutrient solution is supplied in a circulated manner to a vegetable in a thermally-insulated case and the temperature, humidity and/or lighting in the thermally-insulated case are adjusted, thus allowing the vegetable in the thermally-insulated case to be in a paused- or slowed-growth state. Employment of the present method and ecological vegetable freshness-preservation and growing case allows the growth state of the vegetable to be controlled, thus ensuring to the greatest extent the freshness of the vegetable.
