Introduction: Risky behaviors and the tendency towards them among adolescents is one of the important menaces to the health of any society. The present study was conducted with the aim of investigating  hostility  and  its  relationship with  the  tendency  to  risky  behaviors  among  the students of Malekan city in 2020.
Method: The present research is a correlational study. The statistical population includes all male and female first and second grade high school students in Malekan city, which includes a total of 9,500 students. The sample size was 640 students who were selected from among the first and second grade high school students in Malekan city as a quota. Data analysis was performed using Pearson correlation test and multiple linear regression.
Findings: The results showed that there is a statistically significant and inverse relationship between  grandchild /grandparent  relationship  and  tendency  towards  high-risk  behaviors  among students.  Besides, there  is  a  statistically  significant  and  inverse  relationship  between  socio-economic status and the tendency towards high-risk behaviors among students. however, at the middle and high socio-economic level there is no statistically significant relationship between grandchild / grandparent relationship and tendency towards high-risk behaviors.
Discussion: Given the significant tendency of adolescents towards high-risk behavior and its positive relationship with the socio-economic level of the society it is necessary for the government to monitor and pay attention to the improvement of the socio-economic level of teenagers’ families, as well as the state of unfriendliness and family cohesion.