Later, Japan's Foreign Minister Toshimitsu Motegi told reporters he shared the "deep concern" of international community and the Hong Kong people over the legislation.
Wong has said he would be a "prime target" of Beijing's national security law, which critics fear will crush freedoms in the former British colony.
The legislation pushes Beijing further along a collision course with the US, Britain and other Western governments, which have said it erodes the autonomy of the global financial hub.
The "Hong Kong Autonomy Act" passed by unanimous consent. To become law, it must also pass the House of Representatives and be signed by President Donald Trump.
The statement came as US President Trump is due to announce later on Friday his response to the Chinese parliament's advancement of national security legislation for Hong Kong.
The comments came after Beijing unveiled plans last week for national security legislation for Hong Kong.
The proposed bill, submitted on the opening day of China's national legislative session Friday, is aimed at forbidding secessionist and subversive activity, as well as foreign interference and terrorism.
The former European colonies returned to Chinese rule in the late 1990s under a system aimed at preserving their economic systems and ensuring their autonomy, known as "one country, two systems".