Hyman force planning is one of the most important ingredients of organizational management and forms the frameworks of formulating general policies on human resources. Talent management and successor building are two main aspects of human force planning which address current and future talent management and preparing the organization and employees for future positions. To this end, the main purpose of present study is human force planning through evaluating talent management and successor building in Iranian Bank Melli. The methodology is descriptive and analytical and the population consists of managers and experts in HR field of Iranian Bank Melli. The sample of volume by Kokaran method is determined as 68. Two talent management and successor building questionnaires are used to gather data. Freedman test and correlation matrix are used to analyze data. Findings indicated that in the talent management field, the most important components of planning human force in organization include talent measurement parameters, talent development needs measurement, potential talents evaluation, performance-based rewarding system while in successor building plan, they include supports and encouragement by senior managers in executing the plan, people’s tendency to transfer experiences and know-how to others and proper assessment system to identify employees’ capabilities by managers. In conclusion, recommendations are provided on human force planning.