Likely coalition partner New Zealand First has similar goals but wants to deliver gains to New Zealand exporters through different means.
Trade Minister Todd McClay said National's policy was to deliver New Zealand's boldest trade push.
''We will work to unlock markets with 2.5 billion new consumers for the benefit of large and small exporters and their workers in every region of New Zealand.''
National was prepared to move to improve access for New Zealand food producers in key markets such as Japan, he said.
''Our opponents want to stop and renegotiate the whole package. That would set the cause of New Zealand trade access back many years.''
A re-elected National government would seek to launch comprehensive free-trade agreements with the European Union; the United Kingdom (following Brexit); Sri Lanka; and Brazil, Argentina, Paraguay and Uruguay (Mercosur - the South American trade bloc).
It would also seek to complete negotiations with TPP11; Mexico, Chile, Colombia and Peru (the Pacific Alliance); and regional comprehensive economic partnership countries.
It would also upgrade existing free-trade agreements with China, Singapore and the Association of Southeast Asian Nations (Asean).
New Zealand First leader Winston Peters said beef farmers throughout New Zealand were suffering from National's negligence in not securing a bilateral trade deal with Japan as Australia did three years ago.
Securing a free but fair trade deal with Japan was a priority for NZ First.
If beef farmers wanted to know why their returns from Japan, the fourth-largest beef export market, would crash this season, they should look no further than National's obsession with the remnants of the TPP, the so-called TPP11, he said.
''National continues to flog a lame horse instead of doing what we'd do - strike a deal with the Japanese, get tariffs down lower than the Aussie deal, not just for beef but for horticulture, wine, dairy and our other exports. That's possible with one-on-one negotiations.''
NZ First would scrap the TPP11; sign the Russia-NZ free-trade agreement; prioritise free but fair bilateral trade deals with Japan, UK, EU and the US and initiate closer Commonwealth economic relations.
Labour's trade spokesman said there was nothing new in the announcement except for lining-up National's wishlist of deals.