A method for manufacturing a rotor including a rotor core and a permanent magnet , the rotor core having a magnet hole , and the permanent magnet being inserted in the magnet hole and fixed to the rotor core with an adhesive , comprising the steps of: applying the adhesive, which contains a volatile diluting solvent serving as a volatile agent and an expanding agent that expands when heated to a temperature equal to or higher than an expansion start temperature (T1), to the permanent magnet or the magnet hole ; inserting the permanent magnet into the magnet hole of the rotor core ; after the step of inserting the permanent magnet into the magnet hole , volatilizing the diluting solvent by heating the adhesive to a temperature in a temperature range equal to or higher than a vaporization start temperature (T3) at which the diluting solvent volatilizes and lower than the expansion start temperature (T1) and increasing the temperature of the adhesive at a rate lower than that at which the temperature of the adhesive is increased when the adhesive is heated from a heating start temperature (T4) to a temperature in the temperature range equal to or higher than the vaporization start temperature (T3) and lower than the expansion start temperature (T1); after the step of volatilizing the diluting solvent , expanding the expanding agent by heating the adhesive to a temperature equal to or higher than the expansion start temperature (T1); and after expanding the expanding agent , fixing the permanent magnet to the rotor core with the adhesive by curing the adhesive by heating the adhesive to a temperature equal to or higher than a curing temperature (T2), wherein the adhesive is thermosetting and the curing temperature (T2) of the adhesive is higher than the expansion start temperature (T1). applying the adhesive, which contains a volatile diluting solvent serving as a volatile agent and an expanding agent that expands when heated to a temperature equal to or higher than an expansion start temperature (T1), to the permanent magnet or the magnet hole ; inserting the permanent magnet into the magnet hole of the rotor core ; after the step of inserting the permanent magnet into the magnet hole , volatilizing the diluting solvent by heating the adhesive to a temperature in a temperature range equal to or higher than a vaporization start temperature (T3) at which the diluting solvent volatilizes and lower than the expansion start temperature (T1) and increasing the temperature of the adhesive at a rate lower than that at which the temperature of the adhesive is increased when the adhesive is heated from a heating start temperature (T4) to a temperature in the temperature range equal to or higher than the vaporization start temperature (T3) and lower than the expansion start temperature (T1); after the step of volatilizing the diluting solvent , expanding the expanding agent by heating the adhesive to a temperature equal to or higher than the expansion start temperature (T1); and after expanding the expanding agent , fixing the permanent magnet to the rotor core with the adhesive by curing the adhesive by heating the adhesive to a temperature equal to or higher than a curing temperature (T2), wherein the adhesive is thermosetting and the curing temperature (T2) of the adhesive is higher than the expansion start temperature (T1). <EOS>