It is our great pleasure to announce that Asia-Pacific Conference & Workshop on Quantum Information Science 2012 (APCWQIS 2012) will be held on December 3-7th, 2012 in Putrajaya. APCWQIS 2012 is the sixth one in their respective series and is organized jointly by Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia (UPM) with Faculties of Science, Engineering and Computer Science & Information Technology of UPM, Universiti Malaya and International Islamic University, Malaysia.