To provide the distal end of an electronic endoscope preventing the breaking of the connection between a signal cable and a circuit board and the disconnection of the signal cable, even if the signal cable is repeatedly bent with a small curvature radius.

A shield wire insertion hole 12 for bundling and inserting the distal end part of the shield wire 22 of the signal cable 20 is formed in the back wall 8d of a circuit board 8, a shield wire connecting terminal 13 for connecting the distal end part of the shield wire 22 by soldering is disposed in the shield wire insertion hole 12, and an adhesive filling hole 15 for filling the shield wire insertion hole 12 with an adhesive 17 is formed in such a state that the hole 15 communicats with the shield wire insertion hole 12 from the side wall of the circuit board 8.