Cairns returned to Auckland after travelling to London for interviews with anti-corruption authorities saying he now had a clearer picture of the "absurd, bizarre and scary" allegations against him.
"Each and every allegation against me that I have cheated at cricket or attempted to induce others to cheat at cricket is false," he told reporters at Auckland airport.
Current New Zealand captain Brendon McCullum and former batsman Lou Vincent have both told ICC investigators that a high-profile cricketer dubbed "Player X" approached them in 2008 to fix matches, according to leaked testimony from the pair.
He said former captains Stephen Fleming and Daniel Vettori had given evidence to the inquiry, along with current paceman Kyle Mills.
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He did not go into detail about their testimony but said: "These three ex- or current New Zealand players have made no direct accusation against me."
Cairns said "dark forces" were behind the allegations.
"I find the manner in which this whole matter has progressed and the limited information that has been provided to me until very recently to be very disturbing," he said.