A charge-transporting varnish comprising a charge-transporting substance comprised of a charge-transporting monomer or a charge-transporting oligomer, or a charge-transporting material comprised of the charge-transporting substance and a dopant substance; and a mixed solvent containing, in combination, at least one good solvent and at least one poor solvent, characterized in that the charge-transporting oligomer has a number-average molecular weight of from 200 to 5,000 and has no molecular weight distribution the good solvent and the poor solvent have a boiling point difference ΔT (°C) therebetween with an absolute value that satisfies the condition |ΔT| < 20°C, the varnish has a viscosity at 25°C of 7.5 mPa·s or less and a surface tension at 23°C of from 30.0 to 40.0 mN/m, the charge-transporting substance or charge-transporting material is dissolved or uniformly dispersed in the mixed solvent, the good solvent is at least one selected from among N-methylformamide, N,N-dimethylformamide, N,N-diethylformamide, N-methylacetamide, N,N-dimethylacetamide, N-methylpropionamide, N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, trimethyl phosphate, triethyl phosphate, diethylene glycol and triethylene glycol, and the poor solvent is at least one selected from among ethylene glycol, propylene glycol, dipropylene glycol, hexylene glycol, 1,2-butanediol, 2,3-butanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, octylene glycol, glycerol, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether, ethylene glycol diethyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dibutyl ether, ethylene glycol monobutyl ether acetate, ethylene glycol benzyl ether, ethylene glycol monohexyl ether, 2-methoxyethanol, ethylene glycol monoacetate, ethylene glycol monoisobutyl ether, ethylene glycol monoethyl ether acetate, ethylene glycol diacetate, diethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether, diethylene glycol monophenyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol, polyethylene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol monophenyl ether, propylene glycol monomethyl ether acetate, 1-butoxyethoxypropanol, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, trimethylene glycol, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-nonanol, 1-decanol, 1-undecanol, 1-dodecanol, 1-tetradecanol, benzyl alcohol, cyclohexanol, 2-methylcyclohexanol, glycidol, furfuryl alcohol, tetrahydrofurfuryl alcohol, diacetone alcohol, 2-ethylhexanol, 2-phenoxyethanol, α-terpineol, ethyl ether, isopropyl ether, di-n-butyl ether, di-n-hexyl ether, anisole, ethyl phenyl ether, n-butyl phenyl ether, benzyl isoamyl ether, o-cresyl methyl ether, m-cresyl methyl ether, p-cresyl methyl ether, ethyl benzyl ether, diglycidyl ether, 1,4-dioxane, trioxane, furfural, 2-methylfuran, tetrahydrofuran, tetrahydropyran, cineol, methylal, diethylacetal, propyl formate, n-butyl formate, isobutyl formate, methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, sec-butyl acetate, n-amyl acetate, isoamyl acetate, methyl isoamyl acetate, n-hexyl acetate, sec-hexyl acetate, 2-ethylbutyl acetate, 2-ethylhexyl acetate, cyclohexyl acetate, methylcyclohexyl acetate, benzyl acetate, methyl propionate, ethyl propionate, n-butyl propionate, isoamyl propionate, methyl butyrate, ethyl butyrate, n-butyl butyrate, isoamyl butyrate, ethyl oxyisobutyrate, butyl stearate, amyl stearate, methyl acetobutyrate, ethyl acetobutyrate, isoamyl isovalerate, methyl lactate, ethyl lactate, n-butyl lactate, isobutyl lactate, n-amyl lactate, isoamyl lactate, methyl benzoate, ethyl benzoate, propyl benzoate, butyl benzoate, isoamyl benzoate, benzyl benzoate, methyl salicylate, diethyl oxalate, dibutyl oxalate, diamyl oxalate, diethyl malonate, tributyl citrate, dioctyl sebacate, dimethyl phthalate, diethyl phthalate, di-n-butyl phthalate, di-2-ethylhexyl phthalate, di-n-octyl phthalate, methyl ethyl ketone, methyl n-propyl ketone, methyl n-butyl ketone, methyl isobutyl ketone, methyl n-amyl ketone, methyl n-hexyl ketone, diethyl ketone, ethyl n-butyl ketone, di-n-propyl ketone, diisobutyl ketone, 2,6,8-trimethylnonan-4-one, acetonylacetone, mesityl oxide, phorone, isophorone, cyclohexanone, methylcyclohexanone, acetophenone, 2-ethanoic acid, caprylic acid, 2-ethylhexanoic acid, oleic acid, lactic acid, phenol, o-cresol, m-cresol, p-cresol, xylenol, heptane, octane, 2,2,3-trimethylhexane, decane, dodecane, toluene, xylene, o-xylene, m-xylene, p-xylene, cumene, mesitylene, tetralin, p-cymene, cyclohexylbenzene, diethylbenzene, pentylbenzene, dipentylbenzene, dodecylbenzene, cyclohexane, methylcyclohexane, ethylcyclohexane, p-menthane, bicyclohexene, α-pinene and dipentene.