In this research our aim is to develop a scale for lifelong learning competences and investigate the validity and the reliability of the structure of the scale. The participants of this research are 300 secondary school teachers who are randomly selected. The findings on the scale's validity of the structure are computed by the method of factor analysis. It is observed, at the end of analysis, that lifelong learning competencies scale (LLLCS), which is made up of 6 sub-dimensions, contains 51 items. The six sub-dimensions are stated as follows; "self-management competencies", "learning how to learn competencies", "initiative and entrepreneur competencies", "competencies of acquiring information", "digital competencies" and "decision-taking competencies". The coefficient of Cronbach Alfa reliability of the scale is measured as 0.95. As the studies on the viability and reliability illustrate, the scale has the sufficient merit of utilization.