The invention provides a variable-frequency pulsed dedusting system for traditional Chinese medicine-grade crushing equipment. The variable-frequency pulsed dedusting system comprises a support, a shell, a ventilating pipe, etc., wherein the shell is arranged on the upper side of the support; the lower side of the shell is provided with an air inlet; and a baffle plate is mounted on the air inlet.According to the invention, the baffle plate is mounted on and used for blocking and guiding air entering the air inlet, the air enters the lower side of the shell and then enters a filtering cloth bag for filtration; and the bottom side of the shell is provided with a dust bucket and a vibrator is mounted on the outer side of the dust bucket, so dust filtered out by the cloth bag falls onto thedust bucket and is vibrated to a dust outlet as the sidewall of the dust bucket vibrates under the action of the vibrator, thereby ensuring smooth discharging of the dust. Since the filtered dust is discharged out from the dust outlet and does not adhere onto filter, the service life of the variable-frequency pulsed dedusting system is prolonged; and the cloth bag of the invention does not need frequent cleaning and replacement, so filtration efficiency is improved.