National park zoning is an integrated approach for classifying different areas according to their ecosystem and cultural resources protection requirements and controlling recreational use types and intensity. Qianjiangyuan National Park Pilot (hereinafter referred to as Qianjiangyuan National Park, QNP) was used as a case study to explore the recreation suitability assessment system under constraints of zoning. This paper proposed an evaluation index system that combined the use of Delphi and Analytic Hierarchy Process (AHP) methods to determine the suitable recreation sites of QNP. Attributes selected to represent recreation suitability in the national park included natural recreation resources, scenic beauty, human recreation resources, recreation use aptitude, ecological environment carrying capacity, and social condition. All obtained data were evaluated and integrally overlapped in the Geographical Information Systems base. Thus, a recreation suitability map was created manually on a scale of I to IV, with I being "not suitable at all." Results suggested that recreation suitability levels in QNP tended to have an olive-like distribution. Based on the results of recreational use suitability assessment and management requirements of zonings in the national park, this study identified six types of recreational use and proposed dominant service functions and management measures for those recreation use areas. The results of this study will provide guidance regarding planning and management in national parks.