This study reports the current situation on watching eating videos on social networks and its relation to dietary behaviour of students at Hanoi Medical University. This cross-sectional research was conducted at 124 students with Hanoi Medical University from August 2021 to January 2022. The time spents watching eating videos on social networks is used from 1 hour to 2 hours, there are 79 students, of which 22 are male students and 57 female students (accounting for 62.86), and 57 female students (accounting for 64.77%). Research also shows that influencing factors such as age, gender, eating with the family, the choice of content on social networks and eating attitudes have an influence on the level of thinking and behavior, the level of experience and speed of eating when watching eating videos. Therefore, we conducted a study entitled: “The status of watching eating videos on social networks and relationship with eating behaviors of youngers” to: Describe the reality of watching eating videos on social networks to young people's eating behavior; Explore the relationship of watching eating videos on social networks to young people's eating behavior.