The invention discloses a double-layer aluminum gutter greenhouse, which is composed of a main body structure, a cover material and an ancillary facility, wherein the main body structure comprises upright columns, composite beams, water troughs and wall beams; the ancillary facility comprises a ventilation system, a heating system, a power distribution system and an automatic control system; the water trough adopt aluminum gutters, and the aluminum gutters are aluminum structure devices which have the functions of rainwater collection, condensate collection and drainage. According to the double-layer aluminum gutter greenhouse, the anti-bending performance is strong, the sectional dimension is smaller than that of a steel gutter, the shading area is small, and the problem of condensate collection in the greenhouse is solved; a middle cavity is used for separating air inside and outside the greenhouse, so that the heat loss of the steel gutter is reduced; and besides, the double-layer aluminum gutter greenhouse has the properties of dew collection and heat insulation and provides a good growing environment for seedling breeding.