In order to explore the impact of rent-seekers' heterogeneity in ability on two-dimensional rent-seeking activities. By referring to the two-dimensional rent-seeking model in Faria et al. (2014) and the models of heterogeneity rent-seeking. We construct a two-dimensional rent-seeking model with rent-seekers' heterogeneity in ability. Different from previous studies' finding about the increasing of rent-seekers' heterogeneity in ability will decrease social rent-seeking effort. Our finding shows that when the elasticity of policy rent is high enough, the increasing of two rent-seekers' heterogeneity in ability may increase social overall rent-seeking effort.