In this Letter, we propose a different method to achieve tunable topological rainbow trapping by introducing nonlinear materials into two topologically distinct valley photonic crystals (VPCs) without gradient geometry. We demonstrate that under the illumination of a Gaussian beam, topological edge states of different frequencies to be trapped at different positions. More importantly, by adjusting the intensity or position of the light source, dynamic control of both the trapping frequency and position of the edge states can be achieved. Our nonlinear topological structure combines the advantages of dynamic tunability, robustness, holding significant value for nanophotonic devices.