The state constituency was first contested in 1974 and is mandated to return a single Assemblyman to the Melaka State Legislative Assembly under the first-past-the-post voting system.

Since 2021[update], the State Assemblyman for Sungai Udang is Mohd Aleef Yusof from Perikatan Nasional (PN).

The Sungai Udang constituency contains the polling districts of Bukit Terendak, Pekan Sungai Udang, Paya Rumput Jaya and Bertam Hulu.

[2] Ethnic breakdown of Sungai Udang's electorate as of 2021[3] According to the gazette issued on 31 October 2022, the Sungai Udang constituency has a total of 4 polling districts.

[4] The electoral results for the Sungai Udang state constituency in 2004, 2008, 2013 and 2018 are as follows.