With Asia's rapid population aging, intergenerational exchanges between older adults and children are becoming increasingly important for old-age support. However, the relationship between older adults' marital quality and intergenerational support remains underexplored, particularly in multi-ethnic and developing settings. To address this, we examine a subsample of currently married older adults (60+) with at least one child (n = 1575) from Wave 1 (2018) of the Malaysian Aging and Retirement Survey. Using latent class analysis, we identify intergenerational support patterns among older Malaysians. Multinomial logistic regression is employed to investigate how older adults' marital experiences relate to these support patterns. Findings show positive marital experiences are associated with support patterns involving mutual exchange or high receipt of support, while negative marital experiences are linked to patterns characterized by a downward transfer of support to children. Policymakers in developing settings should thus pay more attention to family dynamics when aiming to strengthen intergenerational support.