In order to explore the concrete durability of fiber-doped panels under the action of salt-freezing, different fibers (steel fiber, polypropylene fiber, polyacrylonitrile fiber, polypropylene-steel fiber, polyacrylonitrile-steel fiber and polypropylene-polyacrylonitrile fiber) were doped in the panel concrete, which underwent freeze-thaw cycling test under the chlorine salt concentration of 3.5%. After the test, the specimens were inspected using a scanning electron microscope (SEM). The study found that as the number of salt-freezing cycles increased, the mass loss of the concrete specimens first decreased and then increased, whereas the relative dynamic elastic modulus and compressive strength kept decreasing. The salt-freezing resistance of panel concrete doped with single steel fiber was the best, followed by the panel concrete doped with polypropylene-steel fiber and polyacrylonitrile-steel fiber, and then polypropylene-polyacrylonitrile fiber, single polypropylene fiber-doped panel concrete performed the poorest; however they were all better than ordinary panel concrete. The microscopic test results of SEM verified the improving effect of single and mixed fibers on the salt-freezing resistance of panel concrete.