This work employs two strategies to more accurately calculate and analyze the frequency-dependent dielectric spectrum in liquid water. First, we use the Deep Potential Molecular Dynamics (DPMD) model, which produces accurate potential energy surfaces in conjunction with the Large-scale Atomic/Molecular Massively Parallel Simulator(Lammps) , to investigate dielectric properties and hydrogen bond dynamics of liquid water under ambient conditions. By combining the DPMD and deep Wannier (DW) model , we obtain polarization behavior for liquid water comparable to AIMD simulations. To provide further context, we choose these two pairwise potential models, SPC/Fw and TIP4P/ε , for comparison. These two water models are widely recognized to excel in accurately reproducing the dielectric constant.