The intercontinental missiles ? capable of carrying ten warheads ? would be able to strike the US AND Russia.
The rockets, with a range of 14,000km, are also believed to be within range of the US and capable of carrying ten warheads.
Heilongjiang is the closest province to the American mainland and also shares a border with Russia.
The news comes on the same day that Beijing warned Donald Trump: 'Stay out of the South China Sea dispute'.
Beijing reacted with fury to a warning from Team Trump that it would defend its interests in the disputed Asian sea.
PREPARING FOR WAR China set to ?place nukes on its border with Russia? ? as chilling satellite images ?show secret anti-aircraft guns on South China Sea islands?