The group will travel to Xiamen, Beijing and Xuzhou. Whanganui High School hosts about 30 students from Xuzhou every year.
Su'a said members of the school's Kia Whaiora group would give performances in poi, haka and waiata.
"It will be very special because the waiata was written by [the late] Morvin Simon," Su'a said.
"We have connections with the different places we are going to through our Confucius Classroom. It's very exciting for me to meet up with past students from China who we will see over there."
The group returns on October 9, with a trip to Disneyland, Shanghai, marking the end of the trip.
New Zealand Chinese Language Week began yesterday, promoting the benefits and opportunities of learning more about Chinese language and culture.
The theme is tourism ahead of next year's China New Zealand Year of Tourism.
According to Ministry of Education statistics, in 2017 64,874 primary-age students and 5820 secondary-age students were learning Chinese. This is 8 per cent of the total number of students in New Zealand and the drop-off at secondary school indicates that students do not realise the benefits of learning the language.