Provided is a method for producing a light emitting device, including the steps of providing an intermediate body including a precursor substrate including a base member that includes a top surface and a first bottom surface, a pair of first wiring portions on the top surface, and a pair of second wiring portions electrically connected with the pair of first wiring portions respectively and positioned between the top surface and the first bottom surface; and a light emitting element on the first wiring portions; removing a part of the base member off the first bottom surface of the base member to thin the base member so that a second bottom surface of the base member is formed; and forming a pair of external electrodes, to be electrically connected with the pair of second wiring portions respectively, on the second bottom surface.