Disclosed are an ink composition for forming an OLED functional layer, and an OLED functional layer formed using the same, which improves the spreadability of the ink during inkjet printing by using a fluorine-based solvent and enables the formation of a flat OLED functional layer film after drying. The ink composition for forming an OLED functional layer may include a material for forming a functional layer in a solid form; Aromatic solvent; And a fluorine-based solvent including a compound represented by the following formula (1). [Formula 1] In Formula 1, X 1 to X 6 are each an alkyl group having 1 to 10 carbon atoms, a cyan group (-CN), an amino group (-NH 2 ), fluorine (-F), hydrogen (-H), , or And, at least one of X 1 to X 6 is fluorine, and R 1 to R 3 are an alkyl group having 1 to 10 carbon atoms or And Y 1 to Y 5 are an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, hydrogen or fluorine.
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