The Polar Codes of the famous Plotkin constructed is introduced in this paper, the paper adopted two short linear block code to construct long linear block code. The Polar codes of the destination is constructed with division cooperative manner, and by using Successive Cancellation(SC) joint decoding algorithm, the source node and the relay nodes receive the decoded information simultaneously. It can be regarded as equivalent received code words. By comparison the simulation this paper can obtain that the coded cooperative of Polar Codes is better than the performance of non-cooperative communication systems under the same conditions, and the BER performance of the coded cooperative communication system based on Polar codes is superior than of Reed-Muller codes. Thus, the result shows that coded cooperative communication of Polar codes is effective.