摘要:Indonesia is a country that has an area of mangrove forests in the second place of the world. East Java is one of the provinces that have mangrove forests. The mangrove forest has various conditions, not only good conditions but also damaged conditions. The main cause of damage is the conversion of mangrove forests to ponds and the use of mangrove wood as charcoal. Mangrove forest has various functions so that the Indonesian government issues various laws and regulations relating to the preservation of mangrove forests. This study uses a qualitative approach. Data were collected by in-depth interviews and observations. The informants taken were people who lived around the mangrove area. The study location is on the north coast of East Java which includes Lamongan Regency, Gresik Regency, Pasuruan Regency, and Probolinggo Regency. The results of the study show that the majority of people know the mangrove conservation law products. Community knowledge is mainly obtained from the Village Head. Moreover, they do not know the types of law violations or types of law enforcement related to mangrove conservation. People living in mangrove areas know that there are regulations about mangrove forests, even though they do not know the substance.