PROBLEM TO BE SOLVED: To prevent excessive stress from being applied to an imaging device and to an electric connection place inside a distal end of an endoscope.SOLUTION: An electronic endoscope apparatus includes: an imaging device 54 and a peripheral circuit 60 in the periphery of an imaging device driving system housed inside a distal end of an endoscope a hard substrate 62 in which the imaging device 54 and the peripheral circuit 60 are mounted and in which input/output terminals 62a of the imaging device 54 and the peripheral circuit 60 are provided a signal line cable 68 binding a plurality of signal lines 66 inserted into the endoscope and electrically connected to the input/output terminals 62a and cable support members 70, 71 and 72 as support parts for fixing and supporting the distal end on the endoscope side of the signal line cable 68. The cable support members are connected between the distal end and the hard substrate 62, and their flexibility gradually increases in a direction from the hard substrate 62 to the support parts.
