This study examined the historical significance of Kushiro Park in Hokkaido, Japan from a sociocultural perspective, utilizing the related literature and interviews. The paper focuses on the following seven points: 1) local autonomy under Hokkaido reclamation polices and trends in Kushiro prior to the idea of a park; 2) the background to the idea of Kushiro Park and the selection of the location by the governor of Miyamoto; 3) the negotiation process between the Hokkaido Government and Kushiro Town for the acquisition of park land; 4) the change of land use on the lanned park site which was allotted for reclamation to make farmland; 5) the utilization of park land by residents/government after opening; 6) the features and realization of park design of Honda Seiroku twice; 7) the separation and reduction of Kushiro Park after World War 2. The three major revelations from the study concern the mining development and urban expansion distribution in the background of the park concept and site selection; the difference in their attitude between the Hokkaido Government and Kushiro Town in the negotiation process, and; the contradiction with continuing to make park facilities against the reclamation led to the introduction of non-park land use.