In recent years, due to the joint impact of food safety incidents, egg disease and price fluctuations of related substitutes, the market price of eggs, especially eggs, has fluctuated for many times, which not only affects residents' food consumption and income of egg farmers, but also affects the healthy development of egg industry. This paper selected the monthly panel data from 2014 to 2020 to study the influencing factors of egg price fluctuation. The results showed that chicken price and feed price had significant effect on the fluctuation of egg price, and the price of compound feed had the greatest effect on it. In addition, the increase of pork price would not necessarily lead to the rise of egg price. Meanwhile, the consumer price index had no significant impact on the price of eggs, and the increase of residents income level would significantly promote the price of egg. Therefore, it is of great practical significance to study the external and internal laws of egg price fluctuation and explore the mechanism of stabilizing egg price for the healthy development of poultry and egg industry and national economy.