Conflict management strategy are marker for the variety of ways by which people handle grievances standing up for what they consider right and against what they consider wrong. Conflict is not just about simple inaptness, but is often connected to a previous issue, thus it’s important to understand why conflict arises so as to be able to resolve it before it escalates and affects performance. The objective of this study was to establish the influence of implementation of workplace conflict management on organization performance at Ethiopian customs commission Bahir Dar branch. Descriptive and inferential research design was used in the study. The study used a sample size of 175 respondents and used stratified and simple random sampling. Questionnaires were used as main data collection instrument in the study. Questionnaires were deemed appropriate as they ensured confidentiality of the respondents. A pilot study was conducted to pretest the validity and reliability of instruments for data collection. The data collected from the field was analyzed using Statistical Package for social sciences version 20 and descriptive statistics such as mean percentages and standard deviation was used, also inferential statistics such as Pearson correlation was used. Data was presented using cross tabulation tables to facilitate comparisons and conclusions. The closed ended response questionnaire used a five point likert scale. The correlation results were indicating collaboration, competing, accommodates; compromise and avoidance were positive and significant relation with the organizational performance. Multiple regressions were utilized in analyzing the data. The study found that collaboration, competing, accommodate, compromise and avoidance strategy have positive significant effect on the organizational performance on Ethiopian customs commission Bahir Dar branch. The study concluded that there is no one best strategy in managing conflict as the management of conflict depends on the behavioral intentions of the parties to conflict, the time period and the situation the organization finds itself. It therefore recommended that management of Ethiopian custom commission should emphasize the adoption of collaboration, competing, compromise accommodate and avoidance strategies in order to improve the performance of the organization.