The invention discloses a donor material based on a fluorooxindole-containing compound. The donor material has a chemical structure general formula shown in the description. The organic photoelectricmaterial provided by the invention has simple synthetic steps and a determined structure, and is easy to purify; and an organic photovoltaic device prepared by the organic donor material provided by the invention does not need tedious post-treatment, a thick-film device with higher photoelectric conversion efficiency can be obtained only through simple solution spin coating, a thickness of an active layer can be changed in the range of 120-230nm, the photoelectric conversion efficiency can be maintained at 5.3%-7.8%, a highest photoelectric conversion rate can reach 7.80%, and the donor material has potentiality of ''roll-to-roll'' preparation or printing preparation of a large-area photovoltaic device and good application value.