This research describes the implementation of learning organization in PT Pos Indonesia Bandung Head office using five dimensions of Learning Organization by Marquardt, which include the dimensions of learning, organization, employee, knowledge, and technology. This study is a descriptive research using four-point Likert scale as the scale of the instruments. The data was collected using questionnaires from the participants of the Business Development Management Training 2014. The total number of the respondents was 34. Before the questionnaires were distributed, the validity and reliability tests were done first. The results revealed that, as a whole, learning organization on the participants of Business Development Management Training 2014 in PT. Pos Indonesia Bandung head office was implemented properly. In the implementation, technological dimension was scored the highest among others and knowledge dimension was scored the lowest.