This research was carried out in Pettuadae Village, Turikale District, Maros Regency. This location was chosen with the consideration that there is still a lack of research on the effectiveness of the use of urban forests as public green open spaces in Turikale District which is still under-attention so that attention and direct action are needed by the community and the government to control. There are two data used, namely: primary data and secondary data. The objectives of this study were: to determine the utilization of the Maros urban forest as a public green open space and to determine the factors that influence the effectiveness of the use of the urban forest as a public green open space in the Pettuadae village, Turikale sub-district, Maros district. Data were collected from observations, questionnaires, interviews. The collected data was then analyzed. This study uses two methods, namely descriptive analysis method to determine the utilization of urban forest as public green open space and multiple linear regression analysis method to determine the factors that influence the effectiveness of urban forest utilization as public green open space. The results showed that the utilization of Maros urban forest as a public green open space in Pettuadae Village, Turikale District, Maros Regency was effective. where the Maros urban forest is used as a means of gathering for discussions or playing with friends and family, enjoying the beauty of the urban forest and enjoying several sports facilities and can be used for street vendors as a livelihood. The factors that affect the effectiveness of the use of urban forests as public green open space in Pettuadae Village, Turikale District, Maros Regency, namely the effectiveness factors in terms of 4 variables namely regulations, public awareness, availability of public facilities and facilities, and budget support. Where there are only two influential variables, namely public awareness and the availability of public facilities and facilities