The New Zealand Herald newspaper on Thursday said the Chinese embassy notified parliament that Laura McClure, David Wilson and Maureen Pugh, from parties in the ruling centre-right coalition, and opposition Labour lawmaker Duncan Webb were subject to the ban.
The Chinese embassy told NZ parliament officials the travel ban could be reduced or waived if the politicians apologised for the trip, the Herald reported.
A spokesperson for NZ's foreign affairs ministry did not comment directly on the politicians being barred, but said there is a long-standing practice of Kiwi politicians visiting Taiwan, and such visits are not inconsistent with New Zealand's one-China policy.
"While New Zealand does not have diplomatic relations with Taiwan, this does not preclude New Zealand from maintaining trade, economic, cultural and indigenous exchanges," the spokesperson said.
The Chinese embassy in Wellington did not immediately respond to a request for comment.
A New Zealand parliament official confirmed a meeting with Chinese embassy representatives but did not disclose details.
"Any advice given to MPs is always on a confidential basis," David Wilson, Clerk of the House of Representatives, said by email.
China, NZ's largest trading partner, says Taiwan has no right to state-to-state relations, a position Taiwan rejects. Like most countries, NZ has no formal ties with the self-governed island claimed by China.
Under New Zealand's constitution, members of parliament are independent of the government and make their own travel decisions when invited.
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