Abstract: A method for producing a liquid developer containing a resin binder, a colorant, and an insulating liquid, the resin binder containing a polyester resin A comprising a constituting unit derived from an alcohol component and a constituting unit derived from a carboxylic acid component containing an acid modified product A of an ?-olefin polymer having 3 or more carbon atoms and 18 or less carbon atoms, including: step I: stirring raw materials containing the resin binder and the colorant or raw materials containing the resin binder, the colorant, and a part of the insulating liquid at a temperature of equal to or higher than a glass transition temperature of the resin binder; and step II: adding dropwise the insulating liquid to a stirred mixture of the step I in an amount to make a total of the amounts used in the step I and the step II of 50 parts by mass or more and 500 parts by mass or less, based on 100 parts by mass of a total amount of the resin binder and the colorant at a temperature of equal to or hi