This is a (incomplete) Chinese translation of Asymptote Manual (original English version can be found on http://asymptote.sourceforge.net) by milksea at ctex.org. This translation is still unfinished, we welcome contributions from the Asymptote community. If you are interested in the process of development you may observe http://code.google.com/p/ctex-doc/updates/list Report feedback in the Issues section of ctex-doc project, or in http://bbs.ctex.org forum.