In outdoor spaces where children spend time outside their homes, certain conditions should be provided for the healthy development and increase of their quality of life. The main problem is that the regulations do not contain anything about outdoor standards, so spaces are designed without considering the needs of children. In this study, 105 spatial indicators were determined together with the needs of children for public green spaces. This study was carried out in urban parks serving the whole city within the scope of outdoor spaces. The status of the selected areas in the study to meet these indicators was examined and it was determined that the place with the best score (62.25%) was Hudavendigar Urban Park, the largest urban park in Bursa. Improvement suggestions have been developed for children by introducing indicators that are not found outdoors. These spatial indicators, which are determined by considering the needs of children, will benefit the process of creating all the spaces where children spend time for well-being.