On March 11，2011，the Appellate Body issued its decision on the Sino-American WTO Dispute Case about United States -Definitive Anti-dumping and Countervailing Duties on Certain Products from China，reversing the earlier Panel ruling. The Appellate Body，among the other things， regarded the U.S concurrently using the anti-dumping and countervailing as the“double remedy”which violating the related WTOrule. This article agrees that it could be a milestone case for Chinese export enterprises. However，this article mentions that the Appellate Body does not bar the U.S. from the appropriateconcurrently usingtheanti-dumping andcountervailingduty.