The endoscope is provided with: a hard metal leading end part that is provided on the leading end of a bending part and in which the observation optical component is fixed a leading end cover that is fixed integrally to the hard leading end part and configured using an insulating resin part and which has a transparent illumination window and a light emitting device setting hole which configure the illumination optical component a light emitting device that is provided with a light emitting part that is disposed in the light emitting device setting hole faces the illumination window of the leading end cover and is fixed at a previously determined position and with a conducting part that is positioned on the illumination window side of the opening of said light emitting device setting hole and faces the opening of said light emitting device setting hole a substrate cum heat radiating part that has thermal conductivity is connected to the conducting part of the light emitting device and to which a power supply cable that supplies electric power is connected and a plate shaped heat radiating part that has thermal conductivity one end of which is connected to the substrate and the other end of which protrudes from the substrate and radiates the heat conducted from the substrate.
