The present invention discloses a multi-carrier receiving device and method. The multi-carrier receiving device includes an antenna, a splitter, a plurality of analog extraction modules, a combiner, an analog-to-digital converter, and a plurality of digital extraction modules, where input ends of the plurality of analog extraction modules are connected to an output end of the splitter; an input end of the combiner is connected to output ends of the plurality of analog extraction modules, and an output end of the combiner is connected to an input end of the analog-to-digital converter; an output end of the analog-to-digital converter is connected to each of the plurality of digital extraction modules; and the plurality of digital extraction modules extracts a single-carrier digital signal from a digital signal obtained after analog-to-digital conversion.