The study was carried out to create a modelling equation for estimating the concentration of arsenic (As) in brown rice in As-contaminated soils and for safely managing paddy fields near closed-mine areas and industrial complexes. Soil and brown rice samples were collected from 44 sites in paddy fields near three different areas of closed mines and industrial complexes. Total As concentration, pH, sum of Al, Fe, and Mn concentrations (Al+Fe+Mn), available phosphorus (avail-P), organic matter (OM) content, and dissolved oxygen concentration in the soil samples were determined. Also, 1.0 N HCl, 1.0 M NH4NO3, 0.01 M Ca(NO3)2, and Mehlich 3 extractable-As in the soils were measured as phytoavailable As concentration. In the brown rice samples, total As concentration was determined. Total As concentrations in the soils ranged between 4.06 and 274.76 mg kg?1. In particular, As concentrations in 23 sampling sites exceed the levels (25 mg kg?1) of Soil Contamination Warning Standard (SCWS) for agricultural lands (Region 1) presented in Soil Environment Conservation Law (SECL) established by Ministry of Environment (MOE), Korea. The concentrations of total As in brown rice samples ranged from 0.13 to 0.44 mg kg?1. Relationships among As concentrations in brown rice, total As concentrations in soils, and selected soil properties were as follows: As concentration in brown rice was negatively correlated with soil pH value, where as it was positively correlated with Al+Fe+Mn concentration, avail-P concentration, OM content, and DOC in soil. In addition, the concentration of As in brown rice was statistically correlated only with 1.0 N HCl-extractable As in soil. Also, using multiple stepwise regression analysis, a modelling equation was created to predict As concentration in brown rice as affected by selected soil properties including soil As concentration. The concentrations of As in brown rice estimated by the modelling equation was statistically acceptable because normalized mean error (NME) and normalized root mean square error (NRMSE) values were 0.0015 and 0.2239, respectively, as comparing with measured As concentration in the plant.