An ink jet recording head includes a substrate (807) having a plurality of ejection energy generating element for ejecting ink; a wiring board (815) electrically connected to an electric connection pad (816) on said substrate and functioning to apply a voltage to said ejection energy generating element; a plate combined with said substrate (807), said plate being provided with a groove constituting an ink passage when it is combined with said substrate; wherein a first connecting portion for electric connection between said substrate and said wiring board (815) and a second connecting portion between said substrate and said plate, are sealed by a sealing material; wherein said substrate is provided with a projection at a position between said second connecting portion and the pad.