She is a member of the United Malays National Organisation (UMNO), a component party of the BN coalition.
On 12 May 2017, Asmaiza was appointed as the Perlis State EXCO Member for the first term in charge of Domestic Trade, Cooperatives, Consumerism, Transport, Development of Region, Corridor, New Growth Areas and New Town by Menteri Besar Azlan to replace Sabry Ahmad.
[1][2] On 13 June 2018, Asmaiza was reappointed as the Perlis State EXCO Member for the second term in charge of Rural Development, Poverty Eradication, Development of New Growth Centre, Tourism, Culture, Arts and Heritage by Menteri Besar Azlan.
She defended the seat and was reelected as the Chuping MLA for the second term after defeating Poziyah Hamza of Pakatan Harapan (PH) and Mohd Ali Puteh of Gagasan Sejahtera (GS) by a majority of 1,367 votes.
She lost the seat and was not reelected as the Chuping MLA after losing to Saad Seman of Perikatan Nasional (PN) by a minority of 2,420 votes.