Management of organizational conflicts has become essential in the implementation of projects in both National and County Governments in Kenya. It is therefore important for continuous research studies in this area given its’ importance to national development. The purpose of the study was to establish the influence of intra-group conflict on implementation of county government projects in Busia County. The study adopted descriptive design with a target population of 127 employees of Busia County. The sample size of 127 was selected using census technique. Questionnaires were the main data collection instruments. The raw data was analyzed using descriptive statistics of the frequencies and percentages while Correlation and regression analyses were used to determine the relationship between the study variables. The findings were presented in tabular form. The findings of the study were: Results show that intra-group conflicts had significant influence on project implementation in the County Government of Busia. The study recommendations were: the management of the County Government of Busia should invest more and train its staff on influence of organizational conflicts and how these affect implementations of the projects. Organizations should come up with strategies on handling intra-group conflicts and since it has adverse influence on the implementation of projects in the County Governments in Kenya. The County Government of Busia should make certain that policies and communication that are clear and consistent, and make the rationale for decisions transparent. It is hoped that the study findings would assist managers and stakeholders in the county government in ensuring that projects within their jurisdiction are properly implemented to enhance service delivery to its’ citizens.