"This visit will be a historic one, which will boost relations between the two countries." said the foreign minister.

Speculations arise over President Hu's visit to Japan lately due to dispute on contaminated dumplings.

In January, Japanese media reported 10 people fell ill in the country after consuming frozen meat dumplings produced by a food plant based in north China's Hebei Province. Japanese police found methamidophos in the vomit of those poisoned and in food packages at their houses. But sample tests show the rest of dumplings in the same batch and other batches made at about the same time by the Chinese company were safe. So were the raw materials used in production.