The motivation of workers is a decision factor to the productivity and efficiency of business production of enterprises. Thesis "Analyzing factors influencing employees working motivation at An Khe- Ka Nak Hydropower Company" is carried out to identify and evaluate the impact of factors affecting employees working motivation at An Khe- Ka Nak Hydropower Company. The results of Cronbach's Alpha analysis, EFA factor analysis, multiples regression analysis, its show that 06 factors have positive impact on working motivation; Sort by decreasing impact level as follows: variable income and benefits have the most powerful impact (β1=0,306), followed by a working condition variable (β4=0,236), relationship with coworker (β6=0,225), turning influence of Leadership (β5=0,197), the work Nature variable (β2=0,170), the low impact is variable training and promotion (β3=0,165). From the results of the research, the author has given some governance implications to increase the motivation of working for employees at An Khe- Ka Nak Hydropower Company, contributing to increase productivity, bring production efficiency. In addition, the author has given a limited number of topics and proposals for subsequent research in the future.