A method and apparatus for transmitting and receiving wireless multi-band stream signals using optimal resolution in a wireless digital television transmitter/receiver environment. The method includes: receiving, from a first wireless receiver, at least one of first resolution information and first channel information of a first receiver terminal connected to the first wireless receiver; receiving, from a second wireless receiver, at least one of second resolution information and second channel information of a second receiver terminal connected to the second wireless receiver terminal; scaling a video signal according to a resolution level supported by the first receiver terminal based on the first resolution information and the first channel information and scaling the video signal according to a resolution level supported by the second receiver terminal based on the second resolution information and second channel information; and transmitting the scaled video signals to the first and second wireless receivers, respectively.