According to the present invention, there are provided an ink jet recording head capable of performing high-precision printing and recording and having a high reliability, and a method of manufacturing the head. The ink jet recording head of the present invention has: an element substrate on whose surface an ink discharge energy generating element is formed and which is made of silicon; and a thin and flat inorganic substrate in which an ink discharge port is formed in a portion disposed vertically above the ink discharge energy generating element. Furthermore, the head includes a photosensitive material layer which bonds the element substrate to the inorganic substrate and which is to constitute a wall forming an ink flow path which communicates with the ink discharge port. The inorganic substrate is laminated on the element substrate provided with the photosensitive material layer, and is thereafter provided with the ink discharge port.