The invention provides a charging method and device of industrial electricity expense, and relates to the technical filed of electricity expense charging. The charging method of the industrial electricity expense comprises the steps of obtaining a electricity credit rate of a householder according to credit information and historical expense paying records of the electricity meter householder; setting a credit line and a first-rate user right for the householder according to the credit rate; granting a second-rate user right for right-granted object according to right granting information sent by the householder; judging whether the credit line of a last-stage user is zero or not after prepayment fee of an electricity meter is used up, and stopping supplying electricity if the credit line is zero; starting the credit line if the credit line is not zero; judging whether fee renewal is successful or not within an electricity using duration range of the credit line; stopping supplying the electricity if the fee renewal is unsuccessful. The problem of unnecessary economic loss brought to an electricity meter user on the condition that currently after the electricity fee is used up, outage is immediately conducted is solved, thus the purpose of motivating the electricity user to acquire corresponding credit line through good credit investigation is reached, and the risks brought when an electricity supply department opens the credit line are reduced at the same time.