The article presents relationships between social capital and safety. Social capital, due to its complexity, affects higher level of safety in various way. Among other things social capital denotes higher level of trust, more developed networks of interaction, better circulation of information as well as it reduces transaction costs, costs of necessary control and economic risk. The level of crime and the level of moral hazard usually decrease together with the increasing level of social capital,. Social capital influences security of economic circulation, the level of social security and collective security. This is true for positive social capital. The influence of negative social capital may give inverse results. Current establishment of Polish economic policy regarding creating social capital are presented in the article too.