Since the establishment of diplomatic relations between China and South Korea in 1992, the development speed of bilateral economic and trade relations is getting faster and faster, and the quality is getting higher and higher. According to the United Nations Commodity Trade Statistics Database, China became the largest trading partner of South Korea in 2018, while South Korea became the third largest trading partner of China. Under the background of the Belt and Road Initiative, the trade of agricultural products between China and South Korea has become increasingly frequent. This paper discusses the measurement of agricultural trade level between China and South Korea, and analyzes the influencing factors for reference.