The invention discloses a cucumber sand culture nutrient solution suitable for cucumber soilless cultivationusing river sand as a substrate in greenhouses. Water is used as a solvent, and a solute comprises calcium nitrate, potassium nitrate, potassium dihydrogen phosphate, magnesium sulfate, ammonium nitrate, FeSO4.7H2O, EDTA-2Na, H3BO3, MnSO4.4H2O, CaSO4.5H2O, ZnSO4.7H2O and (NH4)6Mo7O24. The cucumber sand culture nutrient solution provided by the invention has the advantages that firstly, the cucumber growth can be promoted, the cucumber growth and fruit harvesting period is prolonged by about 10-20 days; secondly, the fruit shape of the cucumber is uniform, and has fewbending and deformation phenomena, so that the commodity rate of cucumbers is improved; and finally, the yield-increasing effect is good, and by takingthe Netherlands large cucumber as example, the yield per mu can be up to 13000 jin by using the nutrient solution of the formula and a scientific cultivation technique.