Social capital is a concept that over the past 20 years has become a renewed interest. This article presents evidence that components of social capital can play a prospective role in preventing crime in Youth. The effectiveness of social capital in preventing crime is assessed using data from surveys of 196 youth in central prison of sanandaj city. The data from the two-dimensional and Pearson correlation coefficient was used. The findings show that the relationship between social capital and Youth crime is significant. Also the results showed Youth crime rates lower with more social capital and vice versa. Therefore planning to increase social capital can be reduced amount of delinquency and crime.