The invention relates to a production method for an environment-friendly soilless lawn carpet, which mainly comprises the following steps: laying a waterproof layer, nonwoven fabric, a wadding fiber layer and a nutrition substrate layer in sequence; seeding grass seeds, coating with the nonwoven fabric and then laying vermiculite or zeolite particles; and finally periodically watering and fertilizing during the incubation period. The lawn carpet produced by the invention has short lawn forming time, labor conservation, low labor intensity, low management cost, high lawn purity, no weed, complete root system, good grass quality, uniform thickness, easy survival after transplantation, convenient management, and reeling and cutting property, and overcomes the defects of the prior lawn such as bad applicability and easy rupture. The produced lawn carpet has the advantages of long green period, fresh and green color, strong resistance, light mass, degradability, convenient maintenance convenient transportation and the like, and can be widely applied to the afforestation or the decoration of public places, airports, office buildings, residential building roofs and the like.