The exact classical limits for the coefficient of variation c for the normal distributionare derived.The hand-calculating approximated classical limits for c having high accuracyare given to meet practical engineering needs.Using Odeh and Owen’s computationalmethod and Brent’s algorithm,the tables for ther-upper exact classical limits of coefficientof variation.for normal distribution are calculated for the different confidence coefficientγ,the sample size n=I（1）30,40,60,120,the sample coefficient of variation（?）=0.01 （0.01）0.20.It is shown that if n≤8,（?）≤0.20,then the Y-upper exact classicallimits cu for c are slightly higher than the exact fiducial limits cu,F for c.if n8,（?）≤0.20,then cu-cu,F5×10-6.
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