Knowledge sharing is one of the most important modern tools adopted by business organizations in order to achieve success and continue to face their competitors through accurate and rapid diagnosis of environmental changes and respond quickly to them, which depends on the sharing of all information to get the work done. Related to continuous development and improvement in order to reach the highest performance and competitiveness rates. The current research is based on two variables that interact between them to form the intellectual framework for them, both ( knowledge sharing and the customer knowledge's management ), where the research included its theoretical and practical aspects coverage of the problem, where the researcher therefore used the available information in the available scientific sources On the one hand, as well as on the hypotheses adopted through analysis and interpretation to diagnose the correlation between the variables of the research first and the relationships of influence between them secondly, where the researcher adopted the method of the sample intentional in order to obtain the required data, through the use of a questionnaire form prepared for this purpose, and that By adopting statistical methods for the analysis of this data provided by the program ( SPSS V.18 ) in addition to adopting the researcher's exploratory approach to analyze the problem. The researcher came to the existence of correlation and effect between the research variables of the research sample of the number (78), so a set of conclusions were indicated, the most important of which was the low level of correlation and effect between the variable of the cognitive share in its three dimensions and the change of the management of the customer's id through the distance ( customer knowledge's management ) About the customer) and this is indicated by the coefficients of the link and the value of T calculated for it in table (3) and (4), the most important recommendations made by the research of the research company is the need to increase interest in knowledge about the customer as it is one of the dimensions of managing the customer's knowledge id to make the process of sharing On her customers.