This study aims to identify the relationship between the quality of career life and job satisfaction in the organization by applying to the employees of the Investment Development Agency in the Eastern Province Municipality in the Kingdom of Saudi Arabia This is done by determining the dimensions of the quality of career life (healthy work environment, participation in decision-making, job stability, opportunities for advancement and career advancement) and its relationship to job satisfaction and any of the dimensions of the quality of career life more related to achieving job satisfaction and studying the relationship between the quality of career life and job satisfaction in the organization by applying to the Investment Development Agency in the Eastern Province Municipality in the Kingdom of Saudi Arabia and this study relied on the descriptive analytical approach as this study was done by relying on The study population, which is represented by the employees of the Investment Development Agency in the Eastern Province Municipality in the Kingdom of Saudi Arabia, which number 367 employees, the researcher will draw a random sample of 188 soft and the sample size representing the study population was determined at a confidence level of 95%.