The invention relates to the technical field of waste gas treatment, in particular to a modular automatic-cleaning static lampblack removing device and method. The modular automatic-cleaning static lampblack removing device comprises a shell, and further comprises a cleaning device, at least two groups of static oil removing modules and a module altering device. At least one group of the static oil removing modules is arranged in the shell. The module altering device is connected with the static oil removing modules and drives the different static oil removing modules to be switched between the shell and the cleaning device. According to the modular automatic-cleaning static lampblack removing device and method, the static lampblack removing modules can be quickly and automatically replaced and cleaned, continuous working of the static lampblack removing device can be guaranteed, and the static lampblack removing modules can be externally serviced and maintained by installing the multiple groups of static lampblack removing modules; in addition, the modular automatic-cleaning static lampblack removing device can automatically detect the running state of the device and can be operated without manpower, is safer and more convenient, and does not influence the normal operation of the device.