In a statement cited in Chinese media on Tuesday, the country's foreign ministry and its U.S. embassy claimed Washington used the powers of its agencies - like home interviews and immigration checks - to "harass" Chinese travelers. It was the first time since 2003 that Chinese travel to the US slipped from the prior year.
Relations between the US and China have worsened steadily in recent months as trade disputes - and the Trump Administration's blacklisting of Chinese technology giant Huawei - have sparked broader political tensions.
A travel warning issued by China's Foreign Ministry and the Chinese Embassy and consulates in the us said Chinese visitors have been interrogated, interviewed and subjected to other forms of what it called harassment by USA law enforcement agencies.
The accusations come amid growing tensions between Washington and Beijing.
It urged Chinese citizens and Chinese-funded bodies in the U.S.to step up their safety awareness and preventative measures and respond "appropriately and actively".
He said China had issued a similar warning to students and scholars.
"I believe it is only necessary in light of current circumstances".
"The education ministry reminds students and academics of the need to strengthen risk assessment before studying overseas, enhance prevention awareness, and make corresponding preparations".
In a statement, the Trump administration also accused China of "backpedalling" on trade agreements.
It did not include any new actions against China.
After having warned Chinese students and academics on Monday about risks involved in studying in the United States, the government on Tuesday widened its warning to include Chinese companies and tourists.
US President Donald Trump is expected to meet with Chinese leader Xi Jinping at the G20 in Japan in June, where some experts hope progress could be made towards restarting a trade deal.
On Tuesday, the 30th anniversary of the brutal crackdown on pro-democracy demonstrations in Beijing's Tiananmen Square, a commentary in the Chinese newspaper Global Times praised the ruling Communist Party's decisions at such critical moments as crucial for creating the country's "growth miracle".
"Our negotiating positions have been consistent throughout these talks, and China backpedalled on important elements of what the parties had agreed to", a statement from the Office of the United States Trade Representative (USTR) said.
It cited the trade war as one of many problems that China's economy has confronted in recent decades.
Flags of US and China are displayed at American International Chamber of Commerce (AICC)'s booth during China International Fair for Trade in Services in Beijing, China, May 28, 2019.