The Janet Frame collection incorporates reference copies of her books, reviews of her work and biographical material. The collection was previously stored on a shelf behind the desk which was not satisfactory, library manager Lorraine Weston-Webb said.
Friends of the Waitaki District Libraries had been involved with fundraising for the cabinets.
Frame, who died in 2004, spent much of her childhood in Oamaru.
The function will be held at the library from 6pm to 7pm. Ms Gordon, author Dorothy McKenzie and the library's special collections librarian, Kahren Thompson, will speak.