Mitchell (52), who works in the office of a joinery factory in Balclutha, started in the sport 13 years ago for fun.
She was introduced to the sport with her husband, Colin, when son Andrew tried it at a school camp.
Mitchell has reached the top in a different way to most elite sports people. She first made her mark in masters competition and then progressed to the elite ranks.
To get to the Commonwealth Games, the New Zealand team had to finish in the top six in the qualifying event in New Delhi earlier this year.
The other members of the women's team are Stephanie Croskery (Gisborne) and Mandy McGregor (New Plymouth).
The men's team is Stephen Clifton (Auckland), Shaun Teasdale (Auckland) and Tony Waddick (Invercargill).
It is only the second time archery has featured in the Commonwealth Games. At Brisbane, in 1982, New Zealand's Neroli Fairhall won a gold medal in the recurve discipline. Delhi will be the first Commonwealth Games that has included the compound discipline.
The archers will build up to the Commonwealth Games by competing at two World Cup events in the next eight weeks.
The team will compete in Utah in the United States this month and in Shanghai in August before departing for Delhi in September.
Archery is not on the Commonwealth Games programme for Glasgow in 2014.