A data frame, a data transmitting method and a data transmitting device are provided. The data frame includes a set number of transmission time intervals each including at least two reference signal channels for transmitting pilot signals. A first transmission time interval of the set number of transmission time intervals further includes a control channel, a primary synchronization signal channel, a secondary synchronization signal channel, a broadcast channel, a shared channel and a guard time interval. Each transmission time interval other than the first transmission time interval further includes a control channel, a discovery signal channel, a shared channel and a guard time interval. A second slot of a last transmission time interval further includes a set number of access signal channels.