Abstract: This study describes Salaf boarding school of Hidayatul Mubtadi’in Lirboyo Kediri and Al Falah in Ploso Kediri. The method used is qualitative with a phenomenological approach to symbol interaction. Currently, Salaf Islamic Boarding School is still able to preserve cultural values complete with subculture symbols. The Salaf Culture Islamic Boarding School is inherent and has become a great tradition in religious teaching, namely transmitting traditional Islam in the yellow book. Besides, the obedience of santri to kyai is a virtue in the culture of Salaf Islamic Boarding School. Involutive Javanese values can absorb outside cultures without losing their identities.