This writing aims to describe the concept of santri spirituality or efforts to develop santri spirituality, which is implemented through riyadhah-riyadhah kyai with santri in Islamic boarding schools. Since ancient times, Islamic boarding schools have been one of the important pillars in the world of Indonesian education and culture. Islamic boarding schools are traditional educational institutions that play a big role in making students intelligent in the life of the nation and state. From the womb of Islamic boarding schools were born figures with spiritual education (tarbiyah ruhiyyah) including "highly nutritious nutrition" which is really needed by healthy humans so that they do not move away from the guidance of Allah SWT. In this way, it is hoped that one's life will not experience disorientation, which could result in someone tending to be materialist, secular, hedonistic, and so on. Spiritual education can make the heart and mind healthy, so that attitudes and behavior become noble and rabbani, not animalistic and shaithani (behaving like animals and demons).