PROBLEM TO BE SOLVED: To provide a highly reliably imaging unit 1.SOLUTION: An imaging unit 1 includes: an image pick-up device 10 in which an imaging part 11 is formed； a circuit board 20 in which a connection terminal 22 electrically connected to the imaging part 11 is arranged on its principal surface 20SA； a relay wiring board 30 including a substrate 31, an adhesion layer 32 and a wiring pattern 33 in which a first electrode 33C of the wiring pattern 33 is electrically connected to the connection terminal 22； a cable 50 having a core wire 51； and a holding substrate 40 that holds the core wire 51 with a second electrode 33A, and is fixed to the relay wiring board 30 by the adhesion layer 32 in a state that the core wire 51 and the second electrode 33A are electrically connected by closely contacting each other.【課題】信頼性の高い撮像ユニット１を提供する。【解決手段】撮像ユニット１は、撮像部１１が形成された撮像素子１０と、主面２０ＳＡに撮像部１１と電気的に接続された接続端子２２が配設されている回路基板２０と、基板３１と接着層３２と配線パターン３３とを含み、配線パターン３３の第１電極３３Ｃが接続端子２２と電気的に接続されている中継配線板３０と、芯線５１を有するケーブル５０と、芯線５１を第２電極３３Ａと挟持し、芯線５１と第２電極３３Ａとが密着することで電気的に接続している状態で、中継配線板３０に接着層３２により固定されている保持基板４０と、を具備する。【選択図】図２
