The country also plans to expand its share in the global shipbuilding industry to more than 35 percent in 2011, said the plan issued late Tuesday on the government's main website, www.gov.cn.
China's shipping industry, which is gradually taking market share from its Asian neighbours, is facing a difficult time this year as shrinking orders exacerbate overcapacity problems, state media have said.
The country's State Council, or cabinet, has said it encourages financial institutions to expand their credit for purchasers of exported ships, and will extend fiscal and financial support for domestic buyers of long-range ships until 2012.
It said China would also limit construction of new capacity in the industry, force outdated ships to be replaced, encourage production of more advanced ships and promote mergers.
Early this month, China said it would support plans by qualified ship builders to list their shares and issue bonds, as part of an assistance plan.
China's largest shipbuilders include Guangzhou Shipyard and China State Shipbuilding Co .