Abstract: The sedentary lifestyle will easily lead to diabetes, high blood pressure, heart disease and other chronic diseases, and has become the primary problem of public health. Park with high and free accessibility, is the space supporter of physical activity, especially the morning exercise. In early spring season (April and May) of cold city, the research focused on four urban parks in Harbin. We recorded the data of morning exercise type and spatial distribution, and drew GIS behavior mapping. After that, we quantified the spatial organization characters of the urban parks spaces using space syntax theory. All data were analyzed using the independent samples t-test and ANOVA analysis method, to reveal the different spatial organization characters between morning exercise space and non morning exercise space, and different preferences of four exercise types. It shows that, there is a significant difference between morning exercise space and non morning exercise space in connectivity value and control value. There is a significant difference between Taichi quan space and dance space in connectivity value, control value and integration value. The research aims to provide mathematical support for the rational allocation of urban parks space and improve the efficiency of city park space, alleviate the contradiction between growing demand for sports of residents and limited open space.