Abstract: Provided are a configuration method and apparatus for dual-mode converged communication, and a dual-mode converged communication system. The method includes: determining a first operating frequency band of power line communication (PLC) and a second operating frequency band of radio frequency (RF) communication; and configuring a second frequency band number of the second operating frequency band based on a first frequency band number of the first operating frequency band, such that a high-order harmonic frequency of a first operating clock of the PLC and a high-order harmonic frequency of a second operating clock of the RF communication do not overlap with the first operating frequency band or the second operating frequency band. This can reduce an impact of multiplicative noise generated by harmonic superposition and an impact of noise generated by a CPU during operation on performance of a dual-mode converged communication unit, improving transmission efficiency of dual-mode converged communication.