The present invention, a solvent; a quantum dot comprising a core, a shell surrounding the core, and a ligand bound to the surface of the shell and having about 0.1 to 20 weight ratio (wt%) with respect to the solvent; A quantum dot solution having a volume ratio (vol%) of about 1 to 15 with respect to the solvent and including an additive that is a phosphine-based compound, wherein the ligand includes a first ligand that is a carboxylate-based compound and a second ligand that is a phosphine-based compound A composition and a quantum dot film formed using the same, and a quantum dot display device are provided.
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