The invention relates to the technical field of plant cultivation, in particular to mosquito-repelling flower hydroponics nutrient solution, made from 6-8 parts of ammonium sulfate, 8-10 parts of urea, 6-8 parts of zinc sulfate, 6-8 parts of boric acid powder, 3-5 parts of an enzyme preparation, 6-8 parts of trace elements, 3-5 parts of betel nut, 2-4 parts of dried ginger, 5-7 parts of smoked plum, 6-8 parts of Chinese rhubarb rhizome, 3-5 parts of hawthorn, 2-4 parts of Cyrtomium rhizome, 2-4 parts of sodium cocoate, 3-5 parts of sodium palmitate, 2-4 parts of dodecyl polyglucoside, 2-5 parts of alkyl glycoside, 2-4 parts of fennel, 2-4 parts of Sichuan pepper, and 80-100 parts of deionized water. A formula of the solution is scientific, the solution is safe and pollution free and provides various required nutrient elements for flower plants to grow, the problem that hydroponic flower plants are commonly in shortage of nutrition during growth is effectively solved, biological enzymes contained in the solution are effective in degrading organic acids secreted by plant roots and rotten substances in water, and with the added Chinese herbs, and the solution is an effective pest repellent, effective preparation ensuring environmental sanitation and ideal choice of hydroponics nutrient solutions and is convenient to popularize.