Among those expected to be present to support the schools competition, which was first held in 2013, is Golden Shears and New Zealand champion and former World champion Rowland Smith.
Competitors are expected to come mainly from Napier Boys High School and Lindisfarne College in Hastings, although inaugural winner Whakapunake Maraki was at high school in Flaxmere.
A new trophy is being presented this year, with a miniature to be kept by the winner.
Smith is also expected to line up the next day as he tries to complete a repeat of the Poverty Bay Show and Great Raihania Shears double he won last year, before heading to Australia to shear the first of two 2017-18 home-and-away transtasman tests in Bendigo, Victoria, on October 28.