Participating in the international conferences helps to get the latest progress in cer-tain areas. It provides important channels of communication and platform for cooperation. The article summarized the categories of international conferences， access to it， way to apply for it， how to apply for financial support， visa and passport， as wellas preparations before. The author's experience attend-ing the seventh Asia-Pacific conference neurochemistry（APSN） held in Singapore， may offer some help for reference.