An object of the present invention is to provide a liquid crystal polyester-containing liquid composition which is capable of producing a prepreg and a resin film in which surface defects are remarkably reduced even in case of drying at high temperature to remove the solvent in the production process. Disclosed Are a liquid crystal polyester-containing liquid composition comprising a liquid crystal polyester, an organic solvent, and one or more kinds of selected leveling agents, wherein the content of the leveling agent is from 0.001 to 2.0 parts by mass based on 100 parts by mass of the total amount of the liquid crystal polyester and the organic solvent; and a method for producing a resin film, which comprises applying the above-described liquid crystal polyester-containing liquid composition on a support, and then removing the solvent from the liquid crystal polyester-containing liquid composition on the support at 50° C. or higher.