The invention discloses a method for planting gentiana macrophylla. The method includes the following steps that 1, selection, storage and processing are conducted, wherein seeds are selected and stored; 2, mulching planting is conducted, wherein soil preparation, fertilization, ridging, mulching, mulch punching, sowing, seedling checking and thinning are conducted in sequence, sowing is conducted in the period from the middle ten days of March to the beginning of April, seeds are sowed in holes, the treated gentiana macrophylla seeds are mixed with toxic sand in a ratio of 1:(8-10) and then sowed, and the holes are covered with a layer of thermal-insulation water permeable material formed by mixing fly ash, field soil, dry horse dung and fine sand after sowing and then are filled with soil; 3, field management is conducted, wherein weeding, overwinter management and topdressing are conducted in sequence; 4 harvesting is conducted. By means of the method for planting the gentiana macrophylla, the seedling emergence time is advanced from about 30 days to about 28 days, the survival rate is up to 98.7% or above, seedlings grow strong, and the incidence rate is less than 2.3%.