A Hong Kong lawmaker has called on all local legislators to join a Sunday meeting with senior central government officials to discuss Hong Kong's electoral development - ahead of next month's key vote on how the city's top leader will be elected in 2017.

All 70 Hong Kong lawmakers have been invited to a meeting in Shenzhen on Sunday with central government officials in charge of Hong Kong affairs, including Wang Guangya, director of the Hong Kong and Macao Affairs Office, Li Fei, chairman of the Hong Kong Special Administrative Region Basic Law Committee, and Zhang Xiaoming, director of the Liaison Office of the Central People's Government in Hong Kong.

The meeting aims to exchange views on the Hong Kong government's political reform, which pan-democratic lawmakers deemed as "fake democracy" and have vowed to veto.

Some legislators have declared that they will not join the meeting, including Democratic Party chairwoman Emily Lau Wai-hing and Lee Cheuk-yan of the Hong Kong Confederation of Trade Unions.

Civic Party leader Alan Leong Kah-kit was "inclined to go" to fight for a breakthrough, while Ronny Tong from the same party said he hopes that there will be small group discussions so lawmakers can feel free to speak their mind.

Elizabeth Quat Pui-fan, a lawmaker of the Democratic Alliance for the Betterment and Progress of Hong Kong (DAB), has called on her peers to seize the chance to communicate with central government officials. "Hong Kong's political development has reached a critical point before the vote. The meeting hopefully serves as a breakthrough to the current deadlock. The pan-democratic legislators as representatives of the Hong Kong people have the responsibility to communicate with the central government," Quat told the Global Times.

Meanwhile, a poll conducted by DAB, Hong Kong's largest political party, revealed that 62 percent support the government's constitutional reform package, while 32 percent oppose it.

"Most polls conducted by different organizations have shown that there have always been more people who support the current reform package. These are important indicators the pan-democratic lawmakers have to consider when they cast their vote," Quat said.

Her sentiments are shared by Stanley Ng Chau-pei, president of the Hong Kong Federation of Trade Unions.

"Opposition and extremist groups will organize protests as the vote approaches.  But the failure of Occupy protests has proven that the majority reject radical action," said Ng.

Hong Kong opposition groups including Local Ideology and Hong Kong Localism Power have announced plans to stage a protest on Saturday. The plans have not been approved by the police.