This endoscope comprises an LED light source unit provided on the distal rigid portion configuring the tip portion of an endoscope insertion unit wherein the LED light source unit is provided with an LED ceramic substrate an LED light source mounted on the distal side on the LED ceramic substrate an LED cable inserted into the endoscope insertion unit guided to the tip portion and connected to a conduction pattern on the LED ceramic substrate and a reinforcement member which is fixed integrally to the LED ceramic substrate and which covers a ceramic notch portion provided for exposing the conduction pattern on the LED ceramic substrate.