The objective of the article is to present the process of construction and validation of the Teacher Well-being Scale (Ebed). It is an instrument developed to identify the factors that contribute to teachers’ well-being with their work. Composed of 37 variables of the objective dimension of the work (socioeconomic, relational, labor activity and infrastructure), was applied in 353 Basic Education teachers who evaluated these items as to the degree of satisfaction/dissatisfaction they provide. The analyzes, performed with Pearson’s Correlation and Principal Component Analysis (PCA), show that all variables have a positive and significant correlation with the “Happy” variable (self-perception of teacher happiness with work), contributing and can be validated to measure teacher well-being.