ABSTRACT 2008. This final project report was written based on the job training which was done by the writer in Customer Service Division in PT Pos Indonesia (Persero) Surakarta. The writer had a job training program for more than 100 hours. It was done from March 4, 2008 until April 5, 2008. The objectives of this final project are to describe the activities of Customer Service division in PT Pos Indonesia (Persero) Surakarta and to describe the responsibilities of Customer Service division in PT Pos Indonesia (Persero) Surakarta. The writer concludes that there are many activities done by the Customer Service division. The activities are accepting every complaints through telephone, letter and via internet, making notes of complaints written on the book of complaints, finishing every complaint by tracing the existence of letters, helping post offices in the entire of Indonesia in seeking information of incoming letters in Solo region, giving information about the price list, kinds of services, zip code, and making the report of recapitulation of informer amount.