The present method relates to a method for determining content of methyl phenyl carbamate. Methyl phenyl carbamate or sample containing methyl phenyl carbamate is reacted with excessive barium hydroxide solution in the presence of catalyzer and zeolite granules in the boiling reflux state for 10-30 minutes, the residual barium hydroxide is titrated by standard hydrochloric acid solution and blank test is done at the same time, the content of methyl phenyl carbamate is calculated according to the practical wastage of hydrochloric acid and the wastage of hydrochloric acid in blank test, wherein, the catalyzer is selected from one or more of litharge, zinc oxide, magnesia, the quality is 0.5-1% of that of the sample; the mole number of barium hydroxide is 0.7-3 times than the methyl phenyl carbamate, the consistence of barium hydroxide solution is 0.05-0.3 mol/L, the consistence of standard hydrochloric aid solution is 0.1-1.0mol/L. The method of present invention has advantages of low analysis cost and precision determine, and the method doesn't need standard sample and easy to popularize.