Turbo code is a coding technique that enhances a reliable data transmission. Because of special structure of encoder and iterative decoder, it could obtain 1dB at low EbN0 db that closed the channel capacity limit. However, the redundant bits in coding would decrease the bandwidth efficiency. The puncturing scheme could improve the bandwidth efficiency. Different puncturing pattern could provide a different level of performance. We focus on the analysis of puncturing pattern to compare those performances. In this paper, we discuss the performance of punctured turbo coding on different location of punctured bits and different number of punctured bit. keyword Turbo code Punctured Turbo Code Channel coding, Performance analysis