With the wide application of pure electric logistics truck, the ride comfort and comfort of pure electric logistics truck become increasingly important. The research object is the pure electric logistics truck. The dynamic model of the pure electric logistics truck is established by using ADAMS/Car. The damping coefficient of the front and rear suspension is taken as the design variable, and the weighted RMS values of the cab seat in the vertical direction are taken as the optimization objective. The insight module is used to optimize the design. The automotive dynamic model simulation experiment was conducted on a B-class road under the speed condition of 600 km/h. The peak of the power spectral density curve at the cab seat reduced from 0.117 m/s2 to 0.089 m/s2, and it is reduced by 23.9%. Simulations were subsequently carried out under a variety of speed conditions. The RMS value of the vertical acceleration of the seat is significantly reduced. The ride comfort is significantly improved.