The invention belongs to the technical field of daylight greenhouse heat preservation and humidity reduction and particularly relates to a daylight greenhouse front-end soil heat-preserving and humidity-reducing technology. The technology comprises the following steps of 1, cutting off transverse ground temperature conduction; 2, mounting a water-receiving film, and transferring indoor water. The technology has the beneficial effects that due to the fact that the indoor and outdoor transverse ground temperature conduction is cut off strictly, greenhouse temperature is effectively increased, the growth of a crop root system is promoted, and the stress resistance is improved; due to the fact that the indoor water is transferred to outside, the greenhouse front-end soil water content and the whole indoor humidity are effectively reduced, pathogenic bacterium breeding is inhibited, and occurrence of diseases is reduced; the yield is improved by over 10 percent, and the quality is increased; the pesticide applying times and the using amount of a pesticide are reduced, the pesticide residue is reduced, and the safety of a product is improved.