Monitoring protection device

The invention relates to the field of earthquake monitoring, in particular to a monitoring protection device which comprises a shell, a top cover is installed on the top of the shell, and a monitoring mechanism is arranged on the shell and used for monitoring an earthquake. When an earthquake occurs, the monitoring mechanism monitors longitudinal waves of the earthquake, converts wave signals into electric signals and sends the electric signals to the air supply mechanism, the air supply mechanism starts to supply air, the air supply mechanism moves to drive the locking mechanism to move, and the locking mechanism moves to abut against the top of the cultural relic; the protection mechanism can be unfolded from the bottom of the shell after the air supply mechanism starts, the unfolded protection mechanism is used for fixing the cultural relics, so that the reset protection mechanism can continue to be used, the protection mechanism is arranged at the bottom of the shell, when the protection mechanism is unfo