Teaching is considered as a sacred profession and teacher act as guide in the lives of students without selfishness not only in the process of education development but also in their public life. Teachers’ dedication towards school, society and towards their profession is highly expected so as to have an effective and efficient generation with Altruistic behavior. With this regard the present study is designed to assess Altruistic Behavior among Secondary School Teachers in Medchal Malkajgiri District. The investigation is adopted by descriptive survey method on the sample of 200 secondary school teachers drawn by using the stratified random sampling technique from the specified population. A researcher developed questionnaire is used as the research tool which consists of 40 statements. The study independent variable is Secondary school teachers and dependent variable is Altruistic behavior. The data collected was analysed by using Frequency count, Percentage, Mean, S.D, t-test & ANOVA. The findings of the study are as follows: the majority of the responses (86.86%) are revealing that secondary school teachers are possessing Altruistic behavior in their professional and personal life in Medchal- Malkajgiri district; the findings revealed that Altruistic behavior among secondary teacher found to be insignificant with variables gender, management, subject teaching and years of teaching experience.