This study aimed at identifying family functionality in promoting mastery of al-Quran recitation among the island residents. This Study was conducted involved 70 respondents in Primary School in Perhentian Island (Pulau Perhentian) in Terengganu State of Malaysia. This quantitative study used a questionnaire as the research instrument which focusing on the aspects of functionality support, role, environment and communication. The findings suggest that four aspects in family functionality were at moderately high-level including support (mean = 3.55, SD = 0.85), role (mean = 3.72, SD = 0.92), environment (mean = 3.47, SD = 0.81) and communication (mean = 3.73, SD = 0.89). Analysis showed no positive relationship was observed between family functionality and mastery of Quranic recitation. This shows that systematic and wisdom planning by the authority are needed so that the existing family functionality can be sustained in a quality way and subsequently help inculcate mastery of al-Quran recitation among the new generation of Perhentian Island residents.