The extraterritorial application of domestic law means when one country exercises extraterritorial jurisdiction，it applies its domestic laws with extraterritorial effects to persons，objects and conducts outside of its jurisdiction. Territorial jurisdiction，personal jurisdiction，protective jurisdiction and universal jurisdiction are international-law recognized jurisdictional basis for extraterritorial application of domestic law. Extraterritorial application of Chinese law mainly concerns public law rules and regulations. The problems with extraterritorial application of economic laws and administrative laws are particularly noteworthy. Legislation in these area lags behind the times and cannot satisfy practical needs. First，the legal bases for extraterritorial application are lacking or absent. Second，the conditions for extraterritorial application are not quite reasonably set. Third，coordination between different laws on extraterritorial application is insufficient. Currently，the chief task for the construction of a legal system of extraterritorial application of Chinese laws is to equip relevant laws with extraterritorial application clauses. The confines of extraterritorial application of Chinese laws should be reasonably delimitated. In the meantime，attention should be paid to the coordination of substantive and procedural laws regarding extraterritorial application.