Abstract: Consisted study a problem in that there are deficiencies in the application of the concept -oriented customers in the Libyan industrial companies , which may be the reason for the low marketing performance of these companies , the primary objective of this study is to identify the orientation effect of the customers on the marketing performance , so the researcher to formulate a major imposition of a ( not no significant impact to guide customers on performance marketing ) , branching out from three sub- hypotheses to cover all aspects of the study and researcher used the descriptive and analytical approach to this hypothesis , as well as the list of the survey as a key tool for data collection And The study population consisted of senior management executives totaling (19) single , and directors of departments of marketing, totaling (56) single , and staff departments Marketing 's ( 2417 ) single , have been identified their sample size ( 332 ) single , and was a simple random sample , as well as customers' sample was used statistical analysis software (Spss) as a package to input , process and analyze the data.