In an endoscope apparatus in which an imaging element and a circuit board to which the imaging element is connected are provided inside a distal end of an insertion part, disconnection between the circuit board and a signal wiring line is prevented. In an endoscope apparatus including an insertion part to be inserted into the body, an imaging element, a circuit board electrically connected to the imaging element and arranged parallel to the longitudinal direction of the insertion part, and a signal wiring line electrically connected to the circuit board and extending in the longitudinal direction are provided within the insertion part, and a connecting portion between the circuit board and the signal wiring line is provided with a easing member that eases a force applied to the connecting portion.