Protesters linked hands and shouted slogans urging the government to "return power to the people" as they circled the parliament in Taipei in the latest show of opposition to increasing mainland influence.
Fears that China is extending its control over Taiwan have been growing after a thaw in relations under current President Ma Ying-jeou, whose Beijing-friendly Kuomintang party suffered its worst ever showing in local polls in November.
Police said around 1,000 people had turned out for today's protest, which came after hundreds rallied last month to mark the beginning of the occupation and several other wildfire demonstrations in recent weeks.
"I think Taiwan society has changed after the 'Sunflower Movement' and its impact continues to spread. I believe this force of change will help Taiwan move towards a positive direction," said Huang Kuo-chang, a scholar and prominent leader of the movement.
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Demonstrators are pushing for revisions to the island's referendum law so that major controversial issues can more easily be put to a public vote, as well as a law to make it easier to oust elected officials deemed unfit for office.
The sunflower symbolises a desire to bring issues to light.
There have also been a string of protests against Taiwan's bid to join the Beijing-led Asian Infrastructure Investment Bank (AIIB) and over controversial new Chinese flight routes over the Taiwan Strait.
While the thaw in ties has seen a boost to trade and tourism, concerns over Chinese influence have led to a public backlash.
The "Sunflower Movement" activists that occupied parliament complained the trade pact -- one of several agreements signed with Beijing since Ma came to power in 2008 -- was agreed in secret and would leave the island vulnerable to Chinese influence.
It remains on hold pending an oversight bill, a key demand of protesters to guard against secret deals.