The invention relates to the greenhouse engineering technical field, and especially relates to a greenhouse combined with a cave dwelling and an environment regulation and control method thereof; the greenhouse combined with cave dwelling comprises a kiln body having a plurality of cave dwellings, a support frame used for commonly supporting the greenhouse with an outer riser wall body of the kiln body, and a light transmission cover layer paved on an outer surface of the support frame; a courtyard space is arranged in front of the kiln body; the support frame is arranged in the courtyard space; the support frame, the light transmission cover layer and the outer riser wall body of the kiln body commonly form a plantation room connected with the plurality of cave dwellings; a hole of one cave dwelling is provided with an axial-flow blower used for leading the air from the plantation room to the cave dwelling, and the air in the cave dwelling is discharged to the plantation room from the hole of another cave dwelling, thus forming air exchange. The greenhouse and method fan fully utilize existing building structures and thermal environment characteristics of waste cave dwellings, thus greatly reducing greenhouse production construction cost, reducing greenhouse environment regulation and control energy consumption and cost, so the greenhouse can keep a temperature condition suitable for crop growth.