Abstract: The paper presents the balance between tank capacity and peak shaving capacity of a large-scale LNG receivingterminal. Taking the specific LNG receiving terminal as an example, impacts of incremental tank capacity and purchase ofspot stocks on tank capacity and peak shaving capacity are analyzed. By using a dynamic design model for solution of spotstocks procurement, total differences in months when the monthly gas consumption is consecutively lower than the averagemonthly consumption is taken as the increment in tank capacity. It is proposed that the uneven gas consumption in northernand southern areas in different season is considered to intensify the maneuvering of LNG receiving terminal in these areas, so as to enhance their peak shaving capacity and flexibility.