Ms Eadie said the language assistants, who will be placed in schools throughout the country, will also be assisting in improving the quality of instruction that students are receiving.
In 2010, the institute brought in six language assistants, but increased it to eight in 2011, 12 last year and 22 this time.
"This tangible support is greatly appreciated by schools and an increasing number are now making inquiries about assistance they may be able to gain through the institute," said Ms Eadie.
Institute director Nora Yao said an increasing number of Kiwis were realising the importance of learning Mandarin.
"So many principals, teachers and parents now recognise that young New Zealanders need Mandarin for future employment and engagement with our close neighbour, China," Ms Yao said.
As part of the free trade agreement, a quota of up to 150 Mandarin language assistants can come under a special immigration work category.
Other occupations include Chinese chef, tour guide and martial arts instructor.
China pays the travel costs and living allowances for the language assistants, while New Zealand supports them with accommodation and insurance.