US warns Americans traveling to China about risk of wrongful detention: What to know

The US State Department has warned US citizens traveling to mainland China to exercise caution, citing the risk of unauthorized detention, arbitrary enforcement of local laws and restrictions on leaving the country.

In a travel advisory issued on October 19, 2026, the ministry issued a Level 2 warning to China, advising travelers to take extra care. It said China’s sweeping national security, counterintelligence and data security laws give authorities broad latitude to detain or interrogate foreign nationals, including during normal business activities, research and public speech.

The advisory also highlighted risks for Chinese-Americans, businessmen involved in the disputes, academics, journalists and individuals with current or former ties to the US government.

Why did the US issue a warning to China?

According to the Foreign Ministry, foreign nationals in China may face interrogation, detention or deportation for allegedly violating national security laws. The advisory said authorities could classify a wide range of documents, data, statistics and other materials as state secrets, potentially retroactively.

The ministry warned that activities such as conducting research or dealing with publicly or commercially available information could expose foreign nationals to scrutiny.

Americans with current or past relationships with U.S. law enforcement, the military, intelligence agencies or other government bodies may face additional risks, the adviser said. People traveling on US government-funded programs and those involved in trade disputes with Chinese companies have also been identified as potentially vulnerable.

The department said some Americans have faced criminal prosecution in civil trade disputes. In some cases, disputes have reportedly been resolved through settlements in favor of Chinese businesses.

What are curfews and why are they a concern?

The advisory highlighted China’s use of exit bans to prevent individuals from leaving the country.

According to the State Department, such restrictions may be imposed to induce people to participate in government or Chinese Communist Party investigations, influence civil disputes, pressure relatives or associates to return from abroad, or gain influence over foreign governments.

Americans may only discover the travel ban when trying to leave China, the ministry warned. She also said there may be no legal process available to challenge some restrictions in court.

The advisory noted that travel bans linked to civil or business disputes have remained in place for years in some cases, preventing Americans from traveling abroad for medical treatment. He also cited cases where restrictions were placed on children of US citizens whose relatives were under investigation.

The U.S. State Department said Americans facing wrongful detention can remain incarcerated for years and may not have consistent access to U.S. government officials or family members.

Why do Chinese-American travelers face additional scrutiny?

The advisory warned that dual U.S.-Chinese citizens, former Chinese citizens, and Americans of Chinese descent could face additional scrutiny or harassment.

According to the ministry, China does not recognize dual citizenship. Chinese authorities may consider some individuals to be Chinese nationals if they enter with Chinese identification or travel documents, potentially limiting US consular assistance if they are detained or issued an exit ban.

The State Department urged dual citizens and naturalized US citizens of Chinese descent to enter mainland China using a US passport and appropriate Chinese visas.

He also warned that former Chinese citizens may face additional administrative requirements before being allowed to leave the country.

What did the US say about online communication and protests?

The department advised Americans to assume that Chinese security services have access to emails, text messages and social media posts sent to or from China. It also warned that messages exchanged through Chinese apps could potentially be read even when users are outside the country.

Under the recommendations, people could face detention or deportation for private electronic messages critical of the Chinese government, Hong Kong, Macau or the Chinese Communist Party.

Americans were also advised to avoid demonstrations, be careful near large gatherings, and avoid taking pictures of protesters or police officers without permission. Foreign teachers and students could face detention or deportation for expressing views contrary to the ruling party’s positions, the ministry said.

What precautions should Americans take before traveling to China?

The State Department recommended that Americans traveling to China enroll in the Smart Traveler Enrollment Program (STEP) to receive updates and help the U.S. Embassy or Consulate contact them or their emergency contacts in the event of an emergency.

Travelers were advised to carry a valid US passport and Chinese visa, establish a regular communication plan with family or employers, purchase travel insurance and prepare for the possibility of detention or limited access to consular assistance.

The department also urged visitors to read local laws and customs, avoid illegal drugs and ensure their luggage does not contain any ammunition or prohibited weapons.

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