The much awaited meeting between Mr Trump and North Korea's Kim Jong-un is scheduled to take place on 12 June 2018.
But in an angry statement, North Korea's vice-foreign minister, Kim Kye-gwan, accused the US of making reckless statements and of harbouring sinister intentions.
The BBC reported that North Korea points the finger squarely at US National Security Adviser John Bolton.
"We do not hide our feeling of repugnance towards him," said Kim Kye-gwan.
There were rays of hope for the Korean Peninsula when Pyongyang showed interest for diplomatic talks with South Korea and US. Futher to that the groundbreaking agreement for Mr Kim and Mr Trump to meet came about as North Korea said it was committed to denuclearising the Korean peninsula.
North Korea has also invited foreign media to witness the dismantling of its main nuclear test site later this month.
Mr Bolton recently said North Korea could follow a "Libya model" of verifiable denuclearisation, but Pyongyang has in the past suggested that Libya may have escaped Western military intervention in 2011 had it kept its nuclear weapons programme intact.
Mr Kim's statement, carried by state media, said that if the US "corners us and unilaterally demands we give up nuclear weapons we will no longer have an interest in talks" and "will have to reconsider" attending the 12 June summit in Singapore.
He said North Korea did have "high hopes" but that it was "very unfortunate that the US is provoking us ahead of the summit by spitting out ludicrous statements".
According to the BBC, this is also a warning shot to the Trump administration. They will be aware how much Mr Trump wants this summit and how it is being spun as a success brought about by his maximum pressure strategy,
North Korea wants the world to know that it is coming to the negotiating table from a position of strength, and they may feel that they are making all the concessions. The Koreans have been at loggerheads since the end of the bloody Korean war in 1953.