Development in every society depends on social support .One of these supports is social capital that social trust is one of its elements. The overall goal of this research is to examine the role of interpersonal and institutional trust in citizens’ commitment to civic duties and obligations in Kerman city. statistical community include all the citizens over 15 year old of Kerman city and sample size includes 400 people . The research method was survey and data were collected using a questionnaire and random sampling .According to the research results social commitment predict citizens’ commitment to civic duties and obligations positively and has incremental impact. Institutional trust predict citizens’ commitment to civic duties and obligations positively and has incremental impact. Religious participation predict citizens’ commitment to civic duties and obligations positively and has incremental impact. Value coordination between people and government predict citizens’ commitment to civic duties and obligations positively and has incremental impact. There is no significant relationship between dependent and independent variables. پرونده مقاله