[2] During vote counting, multiple electricity outage fueled suspicions over election fraud, and the number of invalid ballots reached 8,000, nearly all were in favour of Kao.

Opposition accused election frauds as strongholds of Yang experienced electricity outrage at night during vote counting, leaving polling stations with staff only.

[10] Wang Yin-kuei (王吟貴), ex-speaker of Yunlin County Council, ran for Young China Party and as a Tangwai candidate, fighting against Lin Chin-sheng, nominated by the KMT to stage a political comeback.

The local KMT also launched smearing campaign against the rivalry, claiming Wang "stirred troubles", "divided the community", and "publicly assaulted the governance".

On the election day, it was reported that staff at polling station marked the ballot paper in favour of Lin on behalf of a blind despite the elector insisted on voting for Wang.

Officials at polling stations were accused by Yu of rigging the election by fingerprinting on the electoral roll "like playing the piano" to get the ballot papers.

Kuomintang, therefore, was mocked by the public when insisting elections were "honest, fair, and open" for "flagrant in vote-rigging, transparent in ballot-stuffing, and impartial in vote-buying".

For the Tangwai camp, two leading potential candidates reached an agreement, with Yang Chin-hu (楊金虎), delegate of National Assembly, running in mayoral election with CDSP's nomination,[18] while Li Yuan-chan (李源棧), a City Councillor, compete for the seat in Taiwan Provincial Council.