The invention discloses a grade determination method for an error event of a metering equipment clock. The method comprises the following steps of acquiring current time of the metering equipment clock of a user; judging an error state of the metering equipment clock according to a judgment standard of the error state of the metering equipment clock; if the metering equipment clock of the user isin an error state, generating the error event of the metering equipment clock of the user according to the frequency of the error state of the metering equipment clock; and determining the grade of the error event of the metering equipment clock of the user according to the grade of the error event of the metering equipment clock. According to the method, a problem of demand of a method for integrating metering management systems for water, electric, gas and heat energy, improving the utilization rate of energy big data through a reasonable computation method and automatically analyzing to obtain the grade of the error event of the metering equipment clock of the user is solved.