Abstract：A testing system，designed by the authors，of solute transport in fractured media is introduced. With this testing system，solute transport experiments can be carried out in fractured media of different scales. Pressure，temperature and concentration sensors are installed in fractured media，which can directly measure solution concentration anywhere in natural fractures. So this testing system excels other similar devices worldwide. Solute transport experiments are carried out by the testing system with NaCl tracer solution，and hydrodynamic dispersion parameters of NaCl tracer transport are solved by analysis-optimization method.
