The utility model discloses a coaxial reinforced concrete member measuring equipment of one -dimensional based on equivalent circuit. Equivalent circuit measuring equipment accomplishes the measurement with the inside and outside conductor of being surveyed the coaxial reinforced concrete member of one -dimensional jointly. Equivalent circuit measuring equipment divides ware, reverse signal isolator, measurement connection port, directional coupler, programmable attenuator, signal analysis ware, switch circuit to constitute by control server, microprocessor, signal source, merit. During the measurement, measure connection port with two of equivalent circuit measuring equipment and be connected to two connecting cables respectively, be connected to the both ends of being surveyed the coaxial reinforced concrete member of one -dimensional respectively through two connecting cables, the inner conductor of being surveyed the coaxial reinforced concrete both ends of one -dimensional with be connected the cable inner conductor connection, the outer conductor is with to be connected the cable outer conductor connection continuous. Geomaterials self is thoughtlessly congealed in this novel utilization becomes a sensing material, and equivalent circuit measuring equipment can accurately guess the coaxial reinforced concrete's of monitoring one -dimensional pathological change state.