The accessibility of green parks is of significance to the promotion of people's livelihood and well-being, the environmental equity and high-quality urban development. In this paper, based on the green park scale, network evaluation, Amap API path planning and other data, the Gaussian two-step floating catchment area method is used to measure the objective and subjective accessibility of green parks in Fuzhou City under single travel mode and multi-traffic travel mode. The results show that: (1) There are great differences in subjective and objective accessibility of green parks. The high-value areas of objective accessibility are mainly distributed in non-central urban areas, while the high-value areas of subjective accessibility are mostly distributed in the central urban areas. (2) There are also differences between subjective and objective accessibility under different travel modes. The accessibility of green parks under walking travel mode is lower than that of driving and public transport travel mode. The accessibility distribution of comprehensive travel mode is similar to that of driving accessibility, and the green space development model dominated by public transport has not yet been formed. (3) There are fewer counties with the balanced supply and demand, and there are more counties with imbalance between supply and demand. In the counties with high population density, the demand exceeds the supply of green parks. The ratio of objective and subjective supply and demand of green parks in non-central urban areas is generally low. (4) The green parks with high objective accessibility-high subjective accessibility under the mode of walking, driving and public transport are the Three Lanes and Seven Lanes and Guian Xintiandi Leisure and Tourism Resort in Fuzhou City, and more than 70% of the green space belongs to the type of low objective accessibility-low subjective accessibility. The study not only pays attention to the spatial accessibility of green space, but also measures the accessibility of green space from human feelings, so as to provide new research ideas for accessibility evaluation. At the same time, it also provides suggestions for the allocation of green space resources and the improvement of green space quality in Fuzhou City.