1. Chen Su-yueh served on the Changhua County Council from 2006 to 2014, then she won a by-election and succeeded Wei Ming-ku as a member of the Legislative Yuan in 2015.

1. Chen Su-yueh served on the Changhua County Council from 2006 to 2014, then she won a by-election and succeeded Wei Ming-ku as a member of the Legislative Yuan in 2015.
Chen Su-yueh earned an undergraduate degree in history at Chinese Culture University and remained at CCU to pursue a master's in the subject.
Chen Su-yueh has held lecturer posts at Dayeh University and National Open University.
Chen Su-yueh has served as a representative to the Democratic Progressive Party National Congress, and as legislative assistant to Wei Ming-ku.
Chen Su-yueh contested the 2015 legislative by-election in Changhua and defeated Cho Po-yuan.
Chen Su-yueh took office on 16 February 2015, and served out the rest of Wei Ming-ku's legislative term.
In September 2016, Chen Su-yueh attended a rally opposing a permit renewal for a power plant in Changhua owned by Formosa Chemicals and Fibre Corp.
Chen Su-yueh was active in discussions on local and telecommunications infrastructure.
Chen Su-yueh ran for reelection in 2020, and won a second full term that January.
In May 2020, Chen Su-yueh expressed support for an amendment to the Road Traffic Management and Penalty Act, raising fines on truck drivers who do not adequately secure cargo.