The Chinese Ministry of Foreign Affairs has expressed concern that some Chinese students have been denied the visa application required to travel to the United States. At a press conference on the 6th, the Chinese Ministry of Foreign Affairs announced that it had made a strict offer to the United States for refusing visa applications for some Chinese students. A spokesman for the Ministry of Foreign Affairs expressed concern that “it has seriously undermined normal cooperation between the two countries in the field of education,” and called on the US side to review it again. Chinese media reports that more than 500 science and engineering graduate students have been rejected so far. Last year, the United States announced that it would suspend visa issuance to graduate students who have a relationship with the Chinese military in order to prevent espionage by China.