Fully hydraulic, large tonnage vibratory compactor market has been increasing in recent years because of the increasing national investment in highway construction. More and more construction machinery manufacturers have developed fully hydraulic, large tonnage vibratory compactors. But they have to face the strong competence of foreign products, especially after entering WTO. The foreign product prices are getting lower with the tariff lowering. Some drawbacks and deficiencies of technology in domestic compactors are pointed out in the article. It is necessary for Chinese manufacturers to have their own intellectual property in order to win the potential market. Fully hydraulic, large tonnage vibratory compactor market has been increasing in recent years because of the increasing national investment in highway construction. More and more construction machinery manufacturers have developed fully hydraulic, large tonnage vibratory compactors. But they have to face the strong competence of foreign products, especially after entering WTO. The foreign product prices are getting lower with the tariff lowering. Some drawbacks and deficiencies of technology in domestic compactors are pointed out in the article. It is necessary for Chinese manufacturers to have their own intellectual property in order to win the potential market.