The current research was conducted with the aim of investigating Relationship between life expectancy and psychological well-being students During the corona era of 2020-2021. The current research method was quantitative and correlational. The current research population included 83 students of the last semester of university yadegar Imam Khomeini (RA) psychology in 1399-1400, Based on Morgan's table of whom 68 (61 women and 7 men) were selected as Available a sample. Miller's life expectancy questionnaire (MHS) and Riff's psychological well-being questionnaire (RSPWB) were used as research tools. The method of data collection was library and field. SPSS version 26 software was used to analyze the data. While checking the assumption of normality of the data according to the research method which was correlation, Pearson correlation test was used to confirm or reject the research hypotheses. The results of Pearson's test showed that there is a positive and significant relationship between life expectancy and mental well-being and its dimensions in students during the Corona era of 2020-2021with a probability of 99% (p<0.01). Solutions should be organized along with teaching the concepts and dimensions of life expectancy to improve it and explain the factors affecting it, which will increase the level of life expectancy and psychological well-being of students.