The utility model relates to an intelligent test system for permeability characteristics of an earth material. The intelligent test system comprises a model barrel, sensing systems, a data acquiring system, an image acquiring system and a water supply system, wherein the at least two groups of sensing systems are connected with the model barrel; the sensing systems and the image acquiring system are respectively connected with the data acquiring system by a water pressure transmission line and an image data transmission line; the water supply system is connected with the model barrel lower cover of the model barrel by a water inlet tube; and a water outlet tube is connected to the upper cover of the model barrel. Compared with the prior art, the intelligent test system can acquire data by a computer to reduce personal error, can utilize the image acquiring system to accurately describe and analyze an phenomenon in the experiment. A water tank can be lifted to carry out a constant head permeability test and a variable head permeability test. The water slot and the water tank form a closed circulating system to recycle water.