This paper deals with analysis of marketing mix component and consumer buying behavior. Thernpurpose of the study was to find out The Effect of Marketing Mix on Consumer Buying Behaviorrnof Small and Medium Enterprises (SMEs) in Addis Ababa (The case of Lideta, Kolfe-Keraniyornand Arada Sub Cities. Accordingly, the research models were composed of four independentrnvariables such as product, price, place and promotion while there is one dependent variablernwhich is consumer buying behavior. Furthermore hypotheses were developed to shown the effectrnof all the independent variables of marketing mix on the dependent variable of consumer buyingrnbehavior. To this end, a structured 5-point Likert scale close ended questionnaire based surveyrnwas employed to collect data. By using probability sampling technique from the consumer ofrnthree selected sub cities found in Addis Ababa, more specifically 400 questionnaires wererndistributed and 372 (93 %) were returned back for analysis. The correlation analysis wasrnillustrated to examine the relationship between those variables and effects of the factors wasrnreported and analyzed by using multiples liner regression. Descriptive statistics also conductedrnin the research through the aid of Statistical Package for Social Science version 24 (SPSS). Thernfindings of the study revealed that among the independent variables of product significantlyrnaffect consumer buying behavior of SME in Lideta ,Kolfe keraniyo and Arada sub city .rnConcerning to price the beta value as well as the p-value told that those factors has no arnpositively and significantly affect consumer buying behavior of SME in Lideta ,Kolfe keraniyornand Arada sub city. Another promising finding was also told that place is considered as a factorrnand which positively and significantly affect consumer buying behavior. The last independentrnfactors promotion has also a positively and significantly affect the consumer buying behavior ofrnSME of those previously mentioned sub cities. Based on the finding, the researcher tried tornforward a recommendation that government and other stakeholder should focus and working onrnthe above statistically significant factor in order to enhance and improve the enterprise activitiesrnin the near future.