This study investigated teachers' perceptions of the factors that influenced their morale and commitment to work in public secondary schools. The target population consisted of teachers in public secondary schools in Nakuru District. A sample of 172 teachers was randomly selected for the study. The research design adopted in this study was descriptive survey. Teachers' questionnaires and head teachers' interview schedules were used to collect information on the respondents' perceptions on factors that influenced their morale. The instruments were based on a 5 point Likert scale. The reliability coefficient was computed using Cronbach alpha and stood at 0.86. This was deemed adequate for the study. Pearson Moments Correlation was used to establish whether there was a statistically significant relationship between teachers' characteristics and morale and commitment to work. The study established that teachers perceived remuneration, opportunity for further training, responsibility, social status, a sense of belonging and job security as impacting on the level of morale and commitment to their duties. The study found out no statistically significant relationship between teachers' gender, age, and experience and commitment to work. However, there was statistically significant relationship between the professional qualifications and commitment to work. The study also established no statistically significant relationship between teachers' characteristics and perception of the factors that influenced their morale and commitment to work. In all cases alpha coefficient was equal to 0.05.