The utility model relates to a monitoring devices of electric power power grid operation parameter, which comprises a housin, the casing has included interior casing and shell body, cavity lieing in between shell body and the casing is equipped with current sensor respectively, voltage sensor and CDMA wireless communication module, including the inside of casing be equipped with low -pass filtering unit respectively, power amplifier unit, AD conversion unit and singlechip, the singlechip is connected with power management module and lithium cell, current sensor and voltage sensor's output electricity respectively is connected to low -pass filtering unit, low -pass filtering unit's output is connected to the singlechip through power amplifier unit and AD conversion unit electricity in proper order, the singlechip is connected with CDMA wireless communication module's input electricity again, still fixed mounting has vibration sensor on the inside wall of shell body, vibration sensor's output electricity is connected to power amplifier unit, through adopting the structure mentioned above, the utility model discloses can gather the processing to the operating parameter of electric power electric wire netting more effectively to digital processing unit's performance has been guaranteed.