Embodiments of the present application disclose data frame implementation methods and apparatus. In one embodiment, a method includes: configuring a data frame used for radio signal transmission, where the data frame includes at least two subframes, each subframe has a fixed length, the at least two subframes may be mapped to at least two frequency bands with different subcarrier spacings, and a quantity of symbols included in each subframe is corresponding to a subcarrier spacing of a frequency band to which the subframe is mapped. According to embodiments of the present application, various service requirements of 5G mobile communication can be met and a service level of the 5G mobile communication can be improved.