At the vigil this year in the city's harbor-side Victoria Park, images and symbols of Hong Kong's protests will be draped on the stage, T-shirts and posters, Lee said.
A statue of a goddess of democracy - which towered over the Tiananmen protests in 1989 - would sport a yellow umbrella - a symbol of defiance in Hong Kong last year when activists used umbrellas to shield themselves from police pepper spray and teargas.
Hong Kong, a former British colony that returned to Chinese rule in 1997 under a deal to preserve wide-ranging freedoms, is the only place on Chinese soil where commemorations of June 4 are tolerated.
Discussion of the 1989 protest, termed "counter-revolutionary" by Beijing, is taboo on the mainland.
Read MoreHong Kong protests explained
The political temperature is rising again in Hong Kong ahead of a June 17 vote on a Beijing-vetted electoral package that democrats denounce as a sham that makes a mockery of pledges to eventually grant Hong Kong universal suffrage..
China has declined to make concessions on its blueprint for Hong Kong's next leadership election, under which a 1,200-member committee, packed with Beijing loyalists, will vet two or three candidates who will compete for votes to become the city leader.
The two pro-democracy movements - separated by a quarter of a century - have parallels but also big differences.
Police disbanded the Hong Kong protest after 79 days without serious violence, unlike the crackdown in Beijing in 1989. China has never released a death toll but estimates from human rights groups and witnesses range from several hundred to several thousand.
In Taiwan, organizers of a June 4 vigil will hold up yellow umbrellas in solidarity with Hong Kong.
"We would like to speak out for Hong Kong, for the democracy, freedom and human rights we are fighting for," said Chou Ching-chang, an organizer.