Thousands of police are on the streets and pavements have reportedly been glued down as authorities brace for protests during the rare visit by a senior Chinese official.
In his first policy address of 2015, Chief Executive Leung Chun-ying also suggested that a revised school curriculum could help Hong Kong students regain their interest in China.
As Chief Secretary Carrie Lam announced a second round of public consultations, 23 Hong Kong lawmakers hoisted umbrellas and marched out of the legislative chamber.
Four activists were arrested in violent clashes that were "strongly condemned" by a leading Hong Kong pro-democracy movement.
Friday's rally attracted tens of thousands of people and appeared to reinvigorate the city’s pro-democracy demonstrations, which had dwindled over the past week.
Protesters are still streaming into the streets of Hong Kong in the city's largest mass demonstration in years, posing the biggest challenge to Beijing since Tiananmen.