
The purpose of this research was to determine the stage and analyze the relationship between work experiences in improving the professionalism of teachers. Research conducted at the Madrasah Aliyah in Bengkulu. The research was conducted by descriptive method with quantitative approach. The data were collected by questionnaire as an instrument of research related to the study variables. Data analysis in this research used descriptive analysis and inferential analysis using t test analysis, ANOVA, correlation and regression analysis to determine the relationship between the study variables. The results showed that the work experience and professionalism of teachers are at a good level according to the respondents, there are no differences in work experience and professionalism of teachers based on the demographics of the respondents and there is a relationship between work experience and professionalism of teachers, the relationship to the level of a simple and significant, as well as aspects of the dominant work experience of teachers in the professionalism of teachers is the dimension of control over the work and equipment and working lives. It was concluded that work experience has a relationship to the development and improvement of the level of professionalism of teachers in performing their duties as an educator at the school, their work experience good teacher will have a positive influence on the professional development of teachers.