The aim of this work is to highlight the forms of trusts and their respective influences on the commitment in a logistics perspective in partnerships between suppliers and modern distribution. The theories of trust and commitment, and relational approach have been used as the frame work of analysis and the hypothetical-deductive method lay out as a methodological framework. Trust was measured in three dimensions: trust calculated, cognitive trust, and affective trust, which has enabled us to build a scale and detailed measurement. A two-step methodology was adopted: qualitative studies were conducted with industry players; and a quantitative study was conducted there by to verify the assumptions of research. After selection of the two sample holders Research (suppliers, and employees of the modern distributor), the results, for the implementation of factorial analysis (SPSS) and structural equation modeling techniques(PLS), allowed assessment simultaneous reliability and validity, while estimating the relationships and links between manifest variables. In this context, the results of this study suggest the significant impact, in both senses of the dyad, trust on collaborative commitment. On the other hand, it appears that this is the emotional confidence that is determinative of the other types of trust. Managerial and theoretical implications have been put into perspective.