State broadcaster CCTV made no mention of the failed April 13 launch in its report on Hu's meeting on Monday with Workers' Party international relations chief Kim Yong-il at the Great Hall of the People in the heart of Beijing.
Hu sent his congratulations to North Korea's young new leader Kim Jong-un on his assuming the title of Workers' Party first secretary and said strengthening ties with North Korea was a key priority for China's ruling communists.
"We will carry on this tradition ... boost strategic communication and co-ordination on key international issues and work for peace and stability on the Korean peninsula," CCTV quoted Hu, who also leads the Chinese Communist Party, as saying.
Kim Jong-un concurred in a statement carried late on Monday by the official Korean Central News Agency. "It is the steadfast stand of our party and government to invariably develop the traditional DPRK-China friendship provided and cultivated by the leaders of elder generations of the two countries," the statement said.
The high-profile reception for Kim's envoy illustrates how Beijing is determined to maintain strong ties with its communist neighbour despite exasperation over its provocations against the South and Pyongyang's refusal to embark on economic reforms that would reduce its dependency on foreign aid.
China is the North's biggest diplomatic ally and source of economic assistance, and it has opposed new UN economic sanctions over Pyongyang's nuclear and missile programmes. However, Beijing has signed on to previous rounds of sanctions and did nothing to block UN condemnation of the launch of the Unha-3 long-range rocket that exploded shortly after lift-off.
Washington, Seoul and others called the launch a cover for testing long-range missile technology. North Korea said the launch was meant to put a satellite into orbit. The U.S. suspended food aid to North Korea after the failed launch.
Indications that North Korea is digging a tunnel in preparation for a third nuclear test pose a new threat to stable relations.
Hu's meeting with Kim came as North Korea's military said Monday it will launch "special actions" soon meant to wipe out conservative South Korean President Lee Myung-bak's administration.
The army statement carried by state media said the actions would last 3 to 4 minutes and be carried out "by unprecedented peculiar means and methods of our own style." It gave no more details.
North Korea has issued a steady stream of harsh criticism of Lee and his government. Pyongyang says Lee insulted the North's recent celebrations of the birth centennial of national founder Kim Il-sung.