What was the policy of the ming and qing dynasties toward foreigners?

Answer 1

Foreigners could trade only at canton under the supervision of imperial officials.when each years trading season ended they had to sail away.

Answer 2

The Ming Dynasty initially had a policy of limited trade and diplomatic contact with foreigners, but relaxed their stance later on and allowed some foreign trade. The Qing Dynasty, on the other hand, had a more conservative policy and implemented strict regulations on foreign trade and limited contact with outsiders.