The purpose of the study was to assess factors influencing teachers job satisfaction, to examine relationship bet ween teachers job satisfaction and teachers job performance and quality of education in Kellem Wollega Zone particularly at Dale Sadi Wereda secondary schools. To this end, descriptive survey research method was employed. The study participants were 128 teachers, 3(three)vice principals, 4(four) principals and 1(one)supervisors of Kellem Wollega Zone particularly at Alem Teferi, Dale, Ifa Lalo and Cammo secondary schools. The instruments used to collect data from teachers was questionnaire and interview was used for vice principals, principals and supervisors. Documents were consulted to identify teachers who left the profession and following another field of study and students achievement, repetition rate, dropout rate and enrolment rate. The data were entered to computer soft ware to be analyzed using (SPSS) software. The results indicated that the teachers were dissatisfied with their profession. Salary and benefits were indicated as the primary dissatisfying factors. Policies relate to students' discipline, less promotion for teachers, the leadership skill of the principals, and the poor relationships of teachers with the supervisors, principals, vice principals, students and the parents were factors identified as dissatisfying aspect. Secondly, it was identified that there is a direct relationship between teachers job satisfaction and teachers job performance. Thirdly, it was identified that there is a direct relationship between teachers‟ job satisfaction and quality of education. From this study it was concluded that teachers‟ salaries do not meet teachers‟ basic need and no other non-salary incentives provided to, teachers. Also interpersonal relationship of teachers with their supervisors, principals, students and students‟ parent influenced job satisfaction of teachers. Since teachers were dissatisfied to their job it is concluded that its role in influencing teachers‟ job performance and quality of education is believed to be high .Based on the results the research was recommended that the teachers were highly dissatisfied with their salaries, the government of Ethiopia, education leaders and the Ethiopian Teachers‟ Association should understand the importance of implementing appropriate salaries and benefits for teachers Key Words: Teacher, Job Satisfaction, in Kellem Wollega Zone, Dale Sadi Wereda