Based on the theoretical concept of triangulation proposed by Bowen, this study examined the relation betwee marital satisfaction and parent-child triangulation in parents’ marital conflict. Participants included 230 families with only one child. The results revealed that: (1) Marital satisfaction was negatively associated with parent-child triangulation. Among the three dimensions of triangles, the cross-generational coalition was negatively associated with marital satisfaction. (2) Children with divorced parents reported more cross-generational coalition than those with married parents, whereas children with married parents involved more parentification than children from divorced families. (3) There was no significant gender difference in parent-child triangulation.