High employee turnover rate becomes more and more complicated from 2014 up to now, impacts on many aspects of the company such as performance, reputation, finance and image. Specially, in the last haft of 2016 and 2017, the turnover rate increases too quickly that seriously effect on the department’s activities as well as company’s performance. There are a lot of potential problems causing the high employee turnover rate was found out as ineffective leadership, low compensation and poor work environment relied on interviews and literature. After analysis, evaluation and validation process, department manager’s ineffective leadership is demonstrated as the central problem. In this research, ineffective leadership is the term which describes poor leadership qualities as well as causes negative influences on job satisfaction and organizational commitment, results of this issue is high turnover rate. The root causes and proposed solutions for solving problem are significant to reduce the employee turnover rate and improve department’s performance. Finally, Results of research are four potential solutions: team building, developing an internal training, finding third party to train or finding the training courses (external training) and changing Department Managers. Through solution evaluation process related to realistic and feasibility, cost saving, requirement of time and obtained benefits, external training and team building are the most appropriate solutions with available resources in order to improve ineffective leadership in Tuan Loc CIC’s Head Office.