The Prime Minister says New Zealand has a proper, comprehensive relationship with China.

Christopher Luxon is keeping tight lipped about what he talked about behind closed doors with Chinese leaders after his three-day trip drew to a close.

Otago University International Relations professor Robert Patman says the trip appears to have been a successful one, based on the reactions from both sides.

"The two sides signed 11 agreements, including agreements in food safety, customs and also tourism. And also, I think he gave Mr Luxon a chance to plug New Zealand as an educational destination for post-graduate Chinese students who may be considering switching from the United States." 

Prime Minister Luxon and his officials are set to visit Europe, where Luxon will attend the annual NATO summit.

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