The invention relates to a method for soiless cultivation planting of hot pepper in a greenhouse. The method for soiless cultivation planting of the hot pepper in the greenhouse specifically comprises the step of installation of cultivation facilities, wherein nutrient solution barrels which are purchased in advance are buried below the ground of the greenhouse, a solution feed pump is installed, a main nutrient solution feed pipe is installed, cultivation tanks are fixed to the north wall of the greenhouse, the height between the row of the cultivation tanks arranged on the bottommost portion and the ground is 35cm, the center distance of every two adjacent rows of the cultivation tanks is 60cm, liquid return pipelines used for collecting irrigation seepage liquid are installed; the lower half portion of each cultivation tank is filled with river sand with the height of 10cm, and the upper portion of each cultivation tank is filled with cultivation media. The hot pepper produced through the method for soiless cultivation planting of the hot pepper in the greenhouse is good in quality and free of pollution, the production environment is clean and hygienic, damage caused by pests and diseases is relatively low, pesticide consumption is greatly reduced, and commodification of the hot pepper is good; heavy labor of soil cultivation is omitted, and time and labor are saved; the method for soiless cultivation planting of the hot pepper in the greenhouse is not limited by conditions such as the region condition and the soil condition, and the land utilization rate is improved.