The Asian Pain Symposium (APS) is the main pain meeting. Since its established in 2000 (Kyoto, Japan), another four APSs were held in Seoul, Korea (2004), Fukuoka, Japan (2008), Shanghai, China (2011) and Okazaki, Japan (2013). The 6th Asian Pain Symposium (APS2015) will be held in Suzhou, China on November 8-10, 2015. The major topic of the APS 2015 is the latest progress of pain research and novel strategies of pain treatments, including disciplines from molecular to functional, and from basic to clinic studies. We invite submissions from all contributing disciplines within pain medicine.