A gas meter system comprising: a gas meter, the gas meter including: any of a flow rate measurement unit that measures a flow rate of gas, a seismic intensity measurement unit that measures vibration, and a pressure measurement unit that measures a pressure of the gas; an abnormality determination unit that determines that there is an abnormality, based on a measurement value measured by the any of the flow rate measurement unit, the seismic intensity measurement unit, and the pressure measurement unit and that outputs abnormality type data indicating a type of the abnormality; a gas shut-off unit that shuts off supply of the gas; and a meter communication unit that communicates with outside; and a center device, the center device including: a center communication unit that communicates with the meter communication unit, characterized in that the center device includes an analyzer that analyzes a cause of the determination of abnormality in the gas meter, wherein the center device requests analysis-use data necessary to analyze the cause from the gas meter, through a communication by the center communication unit, based on the abnormality type data received from the gas meter, the gas meter transmits the analysis-use data requested from the center device to the center device by the meter communication unit, and the analyzer determines the cause of the determination of abnormality, based on the analysis-use data received by the center communication unit. a gas meter, the gas meter including: any of a flow rate measurement unit that measures a flow rate of gas, a seismic intensity measurement unit that measures vibration, and a pressure measurement unit that measures a pressure of the gas; an abnormality determination unit that determines that there is an abnormality, based on a measurement value measured by the any of the flow rate measurement unit, the seismic intensity measurement unit, and the pressure measurement unit and that outputs abnormality type data indicating a type of the abnormality; a gas shut-off unit that shuts off supply of the gas; and a meter communication unit that communicates with outside; and any of a flow rate measurement unit that measures a flow rate of gas, a seismic intensity measurement unit that measures vibration, and a pressure measurement unit that measures a pressure of the gas; an abnormality determination unit that determines that there is an abnormality, based on a measurement value measured by the any of the flow rate measurement unit, the seismic intensity measurement unit, and the pressure measurement unit and that outputs abnormality type data indicating a type of the abnormality; a gas shut-off unit that shuts off supply of the gas; and a meter communication unit that communicates with outside; and a center device, the center device including: a center communication unit that communicates with the meter communication unit, characterized in that the center device includes an analyzer that analyzes a cause of the determination of abnormality in the gas meter, wherein the center device requests analysis-use data necessary to analyze the cause from the gas meter, through a communication by the center communication unit, based on the abnormality type data received from the gas meter, the gas meter transmits the analysis-use data requested from the center device to the center device by the meter communication unit, and the analyzer determines the cause of the determination of abnormality, based on the analysis-use data received by the center communication unit.