The utility model discloses a loading system of a durability test of a concrete sample. The loading system of the durability test of the concrete sample is characterized by comprising a pressing load applying device and a bending moment load applying device, wherein the pressing load applying device comprises a counterforce frame, a pressure applying assembly, a pressure sensor and a lifting jack; the bending moment load applying device comprises two bending moment load applying assemblies which are symmetrically arranged at the left and right sides of a bent concrete sample. The loading system of the durability test of the concrete sample, which is disclosed by the utility model, is suitable for loading the concrete sample for a long time, can be used for loading on the field at places of construction sites, exposed test stations and the like, and can be moved into the exposed test stations on the field together with the concrete sample; the sample and the loading device can be moved out for measuring any time under the condition that a monitoring device is not required to be embedded, and thus data of exposure tests can be obtained; the durability problem of the coupling effect between concrete characteristics and the corrosion environment is reflected; effective equipment is provided for the concrete durability research.