In this paper, we establish the corrected first law of thermodynamics on the apparent horizon and on constant- \(r\) hypersurfaces in its vicinity for dynamical regular black holes. By employing a coordinate transformation, we reinterpret the constant- \(r\) hypersurfaces near the apparent horizon as a new “apparent horizon”. Using the quantum tunneling method to compute the temperature of these hypersurfaces and combining it with the Einstein field equations, we demonstrate that the corrected first law can be consistently established on all such hypersurfaces. Taking the dynamical Dymnikova black hole as a concrete model, we calculate the correction factor on these characteristic hypersurfaces and establish a consistent correspondence between the temperature derived from quantum tunneling method and the thermodynamic temperature, thereby verifying the validity of the corrected first law.