The Tall Blacks are disappointed with China's walk-off midway through a practice game in Auckland, seemingly over unhappiness with game officials.
New Zealand held a narrow lead in the third quarter of a scrimmage game before the visitors pulled out.
A Basketball New Zealand statement said a Chinese official told them they "weren't getting anything out of the game", ending two days of working together as preparation for the Asia Cup in Lebanon in August.
Tall Blacks coach Paul Henare was pleased with the progress of his young side against the 14th-ranked Chinese but was unimpressed by the early end to proceedings.
"The fact the scrimmage ended early was disappointing, but that was not our call," he said.
"But we got three good quarters of competitive basketball today and will continue to work on the training court here and in China before we get to Lebanon."
The New Zealand team will play two tournaments in China in the lead-up to their maiden appearance at the Asia Cup.