Abstract: A scheme for efficient switching between dual-channel electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) in a room-temperature Doppler-broadened rubidium atomic system is proposed. Based on a Y-type four-level structure, analytical expressions for the probe transmission spectrum in terms of wavenumber mismatch, probe field intensity, and coupling field detuning are derived by the dressed perturbation chain. Results demonstrate that by setting the probe and coupling wavelengths close to each other (e.g., 780 nm and 776 nm) in one subsystem, Doppler broadening can be effectively suppressed. In the other subsystem, the use of a short-wavelength coupling laser (e.g., 480 nm) combined with a low-decay excited state (e.g., 44D_5/2) enables high-resolution dual EIT windows. Furthermore, it is found that increasing the probe field facilitates the transition from EIT to EIA, though strong-field-induced saturation and power broadening effects can obscure the dual-channel structure. This effect can be effectively mitigated by increasing the detuning of the coupling field, thereby enabling efficient and independent switching of dual-channel EIA. This study provides a theoretical foundation for multi-channel quantum light manipulation in inhomogeneously broadened media and offers valuable insights for the design of devices such as multi-channel quantum memories, optical switches, and frequency-division multiplexing optical modulators.