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McEliece is one of the oldest known public key cryptosystems, however it was not quite as successful as RSA. One main reason is that it is widely believed that code-based cryptosystems like McEliece do not allow practical digital signatures. Although XM Wang presented a code-based signature scheme in 1990, some authors find that it is not secure. Recently, T. Courtois et al. show a new way to build a practical signature scheme based on coding theory (simply, Courtois et al. s scheme). The security is reduced to the well-known syndrome decoding problem and the distinguishability of permuted binary Goppa codes from a random code. This shows that error correct codes can be used to construct some other cryptosystems. In this paper, we present, for the first time, a code-based ring signature scheme with signature length of 144+ 126l bits (l is the number of ring members), which is one of the most short ring signature among all the presented ring signature schemes up to now.