Abstract: To solve the contradiction between diversified recreation needs and limited recreational resources, we study the recreation experience in urban parks. The paper applies recreation opportunity spectrum to improve the quality of urban park recreation experience, and puts forward to the concept of E-A ROS model. Taking the Pearl River Park as a case, we adopt questionnaire and SPSS statistical analysis to construct the index system of environmental quality assessment in the Pearl River Park and study the activity factors of users from three aspects: demographic characteristics, behavioral characteristics and behavioral preferences, and probe into the rules of user activities in the Pearl River Park. We construct the Recreation Opportunity Spectrum of the Pearl River Park. Based on the study of the Pearl River Park, this paper provides detailed instructions on the application of E-A ROS model.