Abstract: An intelligent test system for traffic load engineering detection of road construction comprises a support part; a sample box part used for containing samples and carrying out a load test in a vertical direction and a direct-shear test in a horizontal direction; a simulated road load applying part used for applying multiple simulated road loads to the samples; a vertical load applying part used for providing multiple loads in the vertical direction for the samples; a horizontal load applying part used for providing loads in the horizontal direction for the sample box part; an automatic sand-compaction part used for quantitatively compacting the samples layer by layer; a water-level fluctuation part used for simulating rising and falling of a tide level; a dry-wet cycle part used for simulating a rain and a sunlight; and an acquisition part used for acquiring data generated during the test.