The invention provides an operation method of an electric meter electricity consumption detection device. the method comprises the steps of (a) displaying one or more automatic table calculation models and the corresponding trigger zones, wherein the automatic table calculation models comprise a single-phase meter calculation model and a three-phase meter calculation model, and (b) when a selection instruction for a trigger area of one automatic table calculation model sent by a user is obtained, executing the automatic table calculation model, obtaining the corresponding data inputted by the user after entering into the selected automatic table calculation model, obtaining and comparing the theoretical value of the time of each turn of an electric meter and the actual value of the time of each turn of the electric meter, and judging the current health state of the number of turns of the electric meter according to the comparison result, wherein health states comprises fast, normal and low states. According to the embodiment of the invention, a meter fault is rapidly judged rapidly through an automatic computing method, artificial judgment errors are reduced, the method has the advantages of high simplicity and practicability and high reliability, and the purpose of time and labor saving is achieved.