All banks with total assets of more than NZ$1 billion ($703 million), insurers with more than NZ$1 billion in total assets under management, and all equity and debt issuers listed on the country's stock exchange will have to make disclosures.
"We simply cannot get to net-zero carbon emissions by 2050 unless the financial sector knows what impact their investments are having on the climate," Shaw said in a statement.
"This law will bring climate risks and resilience into the heart of financial and business decision making."
The bill, which has been introduced to the country's parliament and is expected to receive its first reading this week, requires financial firms to explain how they would manage climate-related risks and opportunities.
Around 200 of the country's biggest companies and several foreign firms that meet the NZ$1 billion threshold will come under the legislation.
Disclosures will be required for financial years beginning next year once the law is passed, meaning that the first reports will be made by companies in 2023.
The New Zealand government last September said it would make the financial sector report on climate risks and those unable to disclose would have to explain their reasons.
The New Zealand government has introduced several policies to lower emissions during its second term including promising to make its public sector carbon-neutral by 2025 and buy only zero-emissions public transport buses from the middle of this decade.
Prime Minister Jacinda Ardern, who returned to power last October delivering the biggest election victory for her centre-left Labour Party in half a century, had called climate change the "nuclear free moment of our generation."
($1 = 1.4227 New Zealand dollars)
(Reporting by Renju Jose in Sydney Editing by Matthew Lewis)

epa08608696 (FILE) - New Zealand Prime Minister Jacinda Ardern speaks at the Labour Party campaign launch in Auckland, New Zealand, 08 August 2020 (reissued 17 August 2020). New Zealand will be delaying its parliamentary election to 17 October due to rising Covid-19 cases in past days. EPA-EFE/DAVID ROWLAND AUSTRALIA AND NEW ZEALAND OUT