The invention discloses an earthquake multi-point measurement alarm device. The earthquake multi-point measurement alarm device is characterized in that the device comprises an optical fiber optical grating sensor, an optical grating demodulation unit, an alarm unit, a workbench, a clamping unit, a measurement unit and a mounting base; the optical fiber optical grating sensor is connected with anoptical fiber optical grating demodulation device; the optical fiber optical grating demodulation unit is connected into the alarm unit; and the measurement unit is connected with the optical fiber optical grating sensor. By means of the earthquake multi-point measurement alarm device, the continuous switching requirement for the machining baseline of a wood door can be met, and thus the production technological requirements of the wood door are met; and the earthquake multi-point measurement alarm device is low in cost and resistant to corrosion, zero-maintenance is achieved, and the device is applicable to outdoor and indoor environments especially highly corrosive, flammable and combustible environments.