The article studies the factors affecting the stock market price of food companies listed on the Vietnamese stock market in the period from 2016 to 2022, the period affected by the Covid-19 pandemic. The data of the research was mainly taken from the financial statements of 15 small-to-large-scale food enterprises, and reputable websites such as General Statistics Office, State Bank of Vietnam, World Bank,… We used the fixed and random effects model regression method based on the balance panel data. The research results show that there are four factors that have a positive impact on the stock market price of the food enterprises, including firm size (TTS), return on assets (ROA), gross domestic products (GDP), and earnings per share (EPS). The remaining variables, including dividend payout ratio (DPR), price - to - earnings ratio (P/E), consumer price index (CPI), return on equity (ROE) and Covid-19 have no significant effect on the dependent variable.