PROBLEM TO BE SOLVED: To provide a camera head whose head part can be made compact and rigid, a connection method for the camera head, and an endoscope apparatus.SOLUTION: A camera head of an embodiment comprises: a lens unit； a prism having an inclined plane which changes a travelling direction of light passing the lens unit and an emitting surface which emits light whose travelling direction is changed； an imaging element outputting an electric signal； a signal cable； a support member provided with a first surface that has a slope corresponding to the inclined plane and is fitted onto a reverse side surface of the inclined plane and a second surface having a connection part that is electrically connected to an insertion hole in which the signal cable is inserted and the signal cable inserted in the insertion hole； and a wiring board having a first area mounted with the imaging element and a second area electrically connected to the connection part.【課題】ヘッド部の小型化及び剛性の確保が可能なカメラヘッド、カメラヘッドの接続方法及び内視鏡装置を提供する。【解決手段】実施形態のカメラヘッドは、レンズユニットと、前記レンズユニットを通った光の進行方向を変える傾斜面と進行方向が変わった光が出る出射面を有するプリズムと、電気信号を出力する撮像素子と、信号ケーブルと、前記傾斜面と対応する傾斜を有し前記傾斜面の裏側の面に取り付けられる第１の面と前記信号ケーブルが挿入される挿入孔と前記挿入孔に挿入された信号ケーブルと電気的に接続される接続部を有する第２の面とを備える支持部材と、前記撮像素子が実装される第１の領域と前記接続部と電気的に接続される第２の領域を有する配線基板を具備する。【選択図】図３
