A dynamic digital holographic imaging system using a polarization camera integrated with a micro-polarizer phase shift array to achieve parallel phase shift was designed and implemented. The system used a quarter wave plate to turn the reference light and the measurement light into circularly polarized light with opposite rotation， then used the micro-polarizer phase shift array on the polarization camera to obtain four holograms with phase shift difference of π/2， and then used the four step phase shift algorithm to demodulate the measurement light field distribution of the hologram， and finally used the angle spectrum method to reproduce the image in the near field. The simulation and experimental results show that the technique successfully eliminates the interference of zero-order and twin images， and can record the dynamic changes of the objects to be measured in real time， and quickly obtain the reproduced image with micron resolution.