An object of the utility model is to provide a based on transformer vibration signal alarm device, the device gathers the function based on vibration sensor, including sensing system and alarm system, sensing system includes sensor, first processor module and a radio frequency transceiving ware, the sensor adopts arduino simulation piezoceramics vibrations sensor, and its paster pastes on the oil tank wall of transformer, go to make an uproar to pairing vibration signal pertinence, finally obtain transformer body vibration signal. If the transformer breaks down, the shell produces great vibration, and the device will be reported to the police, reminds the operator on duty.