The invention discloses a circuit layout and error correction system used for measuring grounding impedance and a method. The system comprises an electrode and grounding network geographical coordinate acquisition module, a measurement model generation and applicability analysis module and a measurement result automatic correction module, wherein the electrode and grounding network geographical coordinate acquisition module, the measurement model generation and applicability analysis module and the measurement result automatic correction module are connected in turn. The circuit layout and error correction system used for measuring grounding impedance and the method, which are provided by the invention, can overcome the defects of large labor intensity, large error, poor safety and the like in the prior art, and have the advantages of small labor intensity, small error and good safety.