PROBLEM TO BE SOLVED: To provide an agricultural polyolefin-based multilayer film capable of cutting substantially completely an ultraviolet ray having a wide wavelength range, having no decline of long-term ultraviolet absorptivity, and having a low degree of environmental influence in use.SOLUTION: An agricultural multilayer film contains in the whole film layer as much as 3 wt.% or more, an inorganic component having at least one atom selected from Si, Al, Mg, Ca and Li as a component in some layer of a polyolefin multilayer film having at least three layers or more, and also contains at least one or more kinds of benzotriazole-based ultraviolet absorbers represented by formula (1), and at least one or more kinds of benzotriazole-based ultraviolet absorbers each having two benzotriazole skeletons in one molecule, in some layer respectively. Hereby, an ultraviolet ray in the range of 300-380 nm can be shielded substantially completely.【課題】広い波長域の紫外線を実質的に完全にカットし、長期の紫外線吸収能低下がなく、使用による低環境影響度の農業用ポリオレフィン系多層フィルムの提供。【解決手段】少なくとも3層以上を有するポリオレフィン多層フィルムのいずれかの層に構成成分としてSi,Al,Mg,Ca,Liから選ばれた少なくとも1つの原子を有する無機化合物をフィルム全層中に3重量%以上含有し、かつ、少なくとも1種以上の式(1)で表されるベンゾトリアゾール系紫外線吸収剤、及び少なくとも1種以上の一分子中にベンゾトリアゾール骨格を2つ有するベンゾトリアゾール系紫外線吸収剤をそれぞれいずれかの層に含有してなり、300nm~380nmの紫外線が、実質的に完全に遮蔽されてなる。【選択図】なし