Abstract: The durability of basalt fiber reinforced polymer (BFRP) and epoxy resin in ultraviolet radiation environment was studied by accelerated aging test using ultraviolet radiation aging chamber to simulate ultraviolet radiation in atmospheric environment. Based on the changes of tensile strength, modulus of elasticity and elongation at break of BFRP and epoxy resin after ultraviolet aging, combined with the method of deep belief network(DBN), the changing trend of tensile strength and modulus of elasticity of BFRP and epoxy resin was predicted, and the modulus of elasticity of non-destructive samples in the same batch was proposed as the evaluation index of durability of BFRP. The results show that the tensile strength and elongation at break of BFRP and epoxy resin increase first and then decrease with aging time, but the modulus of elasticity tends to decrease gently. The relative error between the predicted value and experimental value obtained by DBN is less than 10%. The validity of predicting durability of BFRP and epoxy resin by DBN is non-destructive. It is more scientific to evaluate the durability of BFRP by the elastic modulus of sexual specimens.