Provided are a method for manufacturing wavelength conversion members that enables manufacturing of wavelength conversion members having a high light extraction efficiency and suppression of material loss, a wavelength conversion member obtained by the method, and a light-emitting device. A method for manufacturing a plurality of wavelength conversion members by breaking into parts a base material 10 for the wavelength conversion members includes the steps of: preparing the base material 10 having a first principal surface 11 and a second principal surface 12 opposed to each other; forming a breaking groove 13 in the first principal surface 11; bonding a support 20 to the second principal surface 12 of the base material 10 having the breaking groove 13 formed in the first principal surface 11; pressing through the support 20 a region of the base material 10 where the breaking groove 13 is formed, thus breaking the base material 10 into the plurality of wavelength conversion members along the breaking groove 13; expanding the support 20 to form a gap between the plurality of wavelength conversion members lying on the support 20; and removing the plurality of wavelength conversion members from the support 20 after forming the gap.