He called agriculture the "lifeblood" of the countryside and pledged to focus on improving electricity and transportation in rural areas.
The minister-elect cut an unassuming figure, sporting a grey polo shirt and a dark Burmese sarong as he sat in a modest room at the government guesthouse.
Kyaw Win faces the daunting task of improving the finances of a country which, for five decades, was beset by wayward policy decisions and scant foreign investment under a junta that stifled economic reform.
The military regime handed over to a semi-civilian government in 2011, which ushered in a series of economic and political reforms.
The International Monetary Fund cautioned Myanmar in September that without reforms, which could lower growth in the short term, the country risked a run on its foreign exchange reserves, which cover just three months of imports, and a burgeoning fiscal deficit.
Kyaw Win said that rather than looking for savings through tax hikes, the NLD would try to close loopholes to boost budget revenue.
"People think we will increase taxes, but that's not true. We will try to find gaps and fix them without increasing taxes," he said.
Echoing Suu Kyi's tough stance during the election campaign, Kyaw Win said the government would also focus on corruption.
"We have to make civil servants realize that they need to work for the people. I can promise that talented people will get suitable positions," said Kyaw Win.
"We will get rid of improper customs like giving positions to people who don't have any talent just because of their background."