This study is entitled the implementation of the activities of CSR (Corporate Social Responsibility) On PT Angkasa Pura I (Persero) Semarang community development. The method used is method of interview. The risult obtained from this research indicates that the planting of seedlings of mangrovetrees which totaled 48.650 tree saplings, which was carried out on the beaches of the program with local goverment. Runway Ahmad Yani Airport in Semarang is the shore limit. To realize environment-friendly Airport aS the Green open space and improve the ability of land as water absorption area. The aAirport supports this program because it helps minimize the onslaught of sea water abrasion. More over, runway and objects of vital Beach Airport. Tangible benefits for the company is to create a green environment and will create a long-term environmental and human health, to infuse the minds of the public that the PT Angkasa Pura I (Persero) Semarang is a company that cares about the environment. By using the community development program fund amounting to Rp 126.730.000