The move is likely to provoke strong opposition internationally and in Hong Kong, which previous year saw months of pro-democracy protests.
The pro-Chinese party accuses the pro-democratic party of trying to "slow down" new legislation in a "malicious way".
Chinese state media said Hong Kong schools have become "lawless" as controversy builds over a history question in a school examination, rekindling tensions over academic freedoms in the semi-autonomous city.
During Monday's scuffles, one pro-democracy lawmaker threw torn up pages of the legislature's rulebook at his opponents.
He was speaking at a late night briefing on the eve of the start of China's annual parliamentary session.
The laws - including banning treason, sedition and secession - are vigorously opposed by pro-democracy politicians and have sparked mass protests in the past.
The Chinese capital blames foreign forces for fomenting unrest and says protesters are undermining the rule of law in Hong Kong.
"Hong Kong's status will be sacrificed with or without this law if society is unstable due to the protesters' violence".
On Monday, a number of pro-democracy lawmakers in Hong Kong were dragged out of the chamber during a row about a Chinese national anthem bill that would criminalise disrespect of the anthem.
Millions hit the streets previous year for seven months of pro-democracy rallies that often spun out into clashes between police and petrol bomb wielding protesters. Demonstrators came out last October against a proposed extradition bill that would have allowed authorities to detain and extradite criminals wanted in territories such as Taiwan and Hong Kong.
Police (R) take part in a clearence operation during a pro-democracy demonstration calling for the city's independence at a mall in Hong Kong on May 16, 2020.
U.S. Secretary of State Mike Pompeo said on Wednesday recent treatment of Hong Kong pro-democracy activists made it more hard to assess that the territory remains highly autonomous from China, a requirement for the special treatment it enjoys under American law.
China's leaders have dismissed popular anger in Hong Kong and instead portrayed last year's protests as a foreign-sponsored plot to destabilise the motherland. "This is the most devastating thing to happen to Hong Kong since the handover".
Beijing mentioned the expelled journalists wouldn't be permitted to work in mainland China, Hong Kong or Macau. "A broad-brush interpretation of this law would signal the end of Hong Kong as we know it".
Chris Patten, Hong Kong's final British governor before the 1997 handover, said the proposal signalled a "comprehensive assault on the city's autonomy".
Pompeo said on Wednesday the recent treatment of pro-democracy activists in Hong Kong makes it harder to assess whether the territory remains highly autonomous from China, a requirement for special treatments the city gets under American law.
Members of the Consultative Conference will "tell the world about how China, as a responsible major country, has taken firm action and contributed to global cooperation in the fight against the COVID-19 epidemic", Wang Yang, the chairman of the body, said in a report to the opening session.
Media captionWhy were Hong Kong fans booing their anthem?