Using the gravity model, this study analyzed the Korean people`s demand for the Korea national parks. According to the model, demand for a tourism destination from another destination is a function of income (and/or population) of departing destination and the distance between two regions. In other words, GDP and the distance between two regions played the principal roles in the gravity model. Drawing upon the gravity model, this study employed the GRDP(gross regional domestic product) and the distance between major metropolitan cities and the seven Korean national parks as independent variables. The number of national park visitors was considered to be the proxy variable of the demand for the park resources. The panel data, which combined the time series and cross-sectional observation, was composed of 7 national parks and 10 years. The panel cointegrating vectors showed that the number of visitors had negative relationship with the distance, while it was positively associated with the gross regional domestic product and the population of the metropolitan cities. Furthermore, the rolling panel estimation illustrated that the negative influence of distance become bigger while the coefficients of the income and population become smaller.