The aim of the research of corporate social responsibility (CSR) communication PT Sari Husada Yogyakarta to the stakeholder is to knowing public relations activity in communicating CSR program to the internal and external stakeholders. This research uses case study to drawing detail of backgound and uniqueness caracter of PT Sari Husada Yogyakarta public relations activity to communicate the CSR programme to all stakeholders. The finding is, PT Sari Husada Yogyakarta cooperating with PKPU Yogyakarta to manage and communicating the programme of CSR. Online social media is the backbone of the communication activity to explain CSR programme to the stakeholders. While press release and bulletin news are the supplement media to communicate CSR. This kind of communication activity is no longer reach the effectiveness, because of the human resources capacity and capability