In the present world scenario, along with an enormous growth in the knowledge pool, education is established as a plan of action for understanding knowledge and using it as an instrument for personal and social growth. One most serious issues in private schools is a high percentage of employee stress, particularly among teachers. Stress among teaching staff in private schools is caused by a variety of circumstances that influence employees' duties and work ethics. To study this significant aspect, 600 teachers were randomly selected from 30 private schools in Bhubaneswar. The study focussed on analyzing the factors causing job stress among private school teaching staff and its influence on performance along with the health conditions of the teaching staff. The facts were acquired from a well-framed and pre-quantified set of questions. Data analysis and interpretation were done using the methods of descriptive statistics, analysis of factor, T-test, Regression analysis, ANOVA, and SPSS 19.0. According to the descriptive statistics, Teachers had an average stress score of 74.6, with 34 being the lowest and 129 being the highest. The correlation matrix between job stress and performance concluded that the stress level is positively related to conflicting roles, pay incentives, level of efficiency (0.227), turnover intentions (0.205), promotion and opportunities, training, control in the workplace, and so on, all of which contribute to a rise in teacher stress. Hence, it suggested that school administrations must seek and consider the needs of their teaching staff.