In order to resolve the problem of low efficiency of the measurement of soil cation exchangeable capacity (CEC) with the traditional glass rod stirring method, an experiment was designed to stir suspensions with a magnetic stirrer instead of glass rod. Parallel tests different in controlled condition were carried out in different labs to determine CEC of soils different in clay content with the magnetic stirring method for comparison between the tests in accuracy, operability, stability and applicability of the measurements with the method.Results show that the magnetic stirring method was not lower or even magnetic stirring method higher than the glass rod stirring method in accuracy and precision of the CEC measurement. What was obtained with the former was highly in consistency with the values of the certified reference materials. When stirring of the suspension went on over 1 min at no less than 850 r?min^-1, duration and speed of the stirring did not have much effect on soil CEC determination, and neither the labs where the tests were conducted. No significant difference was found between labs in CEC measurement. Compared with the traditional glass rod stirring method, the magnetic stirring method has such merits as simple in operation and high in efficiency, stability and precision, when used to measure soil CEC, and is highly suitable for use to determine soil CEC of large batches of soil samples.