On Dec. 182009，the United States announced that it has reached a settlement with China in its World Trade Organization dispute proceedings over illegal subsidies provided to Chinese agricultural and industrial producers under China's“famous brands”program. China has already withdrawn the measures atissue.Although the casehas beensettled，several legal issues should still be clarified.After summering the facts ofthis case，this articledigests therules of the prohibited export subsidies. Finally，this article comments on three legal issues rose in this case:Whether the measures from the“guidelines”of the central governmental ministry are the compulsory legal documents？Are there any dif erence between“contingent upon export performance”and“mere granted to enterprises which export？ Can the Article 11.9 of the SCM agreement on“de minimis”be used as the exception defense？