An organic semiconductor composition including an electron donating organic semiconductor, an electron accepting organic semiconductor, a solvent and an additive a boiling point of which is higher than that of the solvent, characterized in that the additive is one or two or more compounds selected from the group consisting of compounds represented by any one of the following general formulas to: in which in the above general formula, A represents any aromatic hydrocarbon group having one ring or a heteroaromatic group having one ring, n is a natural number of 2 or more, R 1 s are n of substituents coupled with the A at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group or an alkanoyl group, further, at least one among a plurality of R 1 s is either an alkoxy group or an alkanoyl group, plurality of R 1 s may be combined with one another to form a ring, and in which in the above general formula, B represents any aromatic hydrocarbon group having two rings or a heteroaromatic group having two rings, n is a natural number of 1 or more, R 2 s are n of substituents coupled with the B at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group, an alkanoyl group or a thioalkyl group, further, at least one among R 2 s is any one of an alkoxy group, an alkanoyl group and a thioalkyl group, a plurality of R 2 s may be combined with one another to form a ring, and in which in the above general formula, C represents any aromatic hydrocarbon group having one ring or a heteroaromatic group having one ring, n is a natural number of 1 or more, R 3 s are n of substituents coupled with the C at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group, an alkanoyl group or a thioalkyl group, further, at least one among R 3 s is a thioalkyl group a plurality of R 3 s may be combined with one another to form a ring. in which in the above general formula, A represents any aromatic hydrocarbon group having one ring or a heteroaromatic group having one ring, n is a natural number of 2 or more, R 1 s are n of substituents coupled with the A at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group or an alkanoyl group, further, at least one among a plurality of R 1 s is either an alkoxy group or an alkanoyl group, plurality of R 1 s may be combined with one another to form a ring, and in which in the above general formula, B represents any aromatic hydrocarbon group having two rings or a heteroaromatic group having two rings, n is a natural number of 1 or more, R 2 s are n of substituents coupled with the B at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group, an alkanoyl group or a thioalkyl group, further, at least one among R 2 s is any one of an alkoxy group, an alkanoyl group and a thioalkyl group, a plurality of R 2 s may be combined with one another to form a ring, and in which in the above general formula, C represents any aromatic hydrocarbon group having one ring or a heteroaromatic group having one ring, n is a natural number of 1 or more, R 3 s are n of substituents coupled with the C at an arbitrary position, may be the same or different, and represent an alkyl group, an alkoxy group, an alkanoyl group or a thioalkyl group, further, at least one among R 3 s is a thioalkyl group a plurality of R 3 s may be combined with one another to form a ring.