Mr Huo said Labour would be going back to the drawing board to see where it went wrong with the ethnic vote, and that the party was "committed to connect with them in time for the next election".
"But it is critical that [we] continue to have diverse ethnic representation in Parliament."
Should Mr Huo not make it back to Parliament, Labour will be left with just Indo-Fijian Rajen Prasad as its sole Asian MP.
Diversity in Parliament hit a historical high after the 2008 election when MPs from communities never before represented entered through their respective party lists.
But National was left without a Chinese MP for nearly a year after former Ethnic Affairs Minister Pansy Wong resigned in January, and Labour has lost its only Muslim MP, Pakistani-born Ashraf Choudhary, who decided not to stand.
However, the surprise return of New Zealand First and the surge in popularity for the Greens have helped to maintain the number of Maori MPs and pushed up Pacific Island MPs.
NZ First's Asenati Taylor, a Samoan, will boost the number of MPs of Pacific Island descent to five, up from four in the last election.
University of Auckland's Jian Yang enters Parliament off National's list, and will become the party's new Chinese MP to replace Pansy Wong.
National's Korean-born Melissa Lee and Sikh-Indian Kanwaljit Singh Bakshi are also returned on the list, despite a poor showing in their respective electorates of Mt Albert and Manukau East.
Unlike last time, there was no "Chinese battleground" at Botany. The New Citizens Party, a Chinese-backed party, withdrew from the election.
In Botany, where immigrant voters outnumber the locals, National incumbent Jami-Lee Ross cruised home with 16,302 votes - and a 10,054 majority.
Labour's Taiwanese-born candidate, Chao-Fu Wu, managed 6200 votes and the Conservatives' Paul Young 2000. The Conservatives had put Asian candidates high on the party list - with little reward.
Fewer women will also be MPs this time, with just 38 - or 31 per cent of Parliament. After the 2008 election there were 42 women, making up 34 per cent.