Hong Kong , Macao, Taiwan and the mainland lie in different scopes of law, there are different legal system and legal custom in these districts, so all kinds of conflicts of law must exist, the conflict of negotiable instruments law is a kind of these conflicts of law. At present, in China nobody research conflict of negotiable instruments law among Hong Kong , Macao, Taiwan and the mainland, somebody only research international conflict of negotiable instruments law, and focus on private international law,...