The present invention discloses a method for crossly realizing space division and time division and a device thereof. The invention relates to the communication field and settles the problems of resource waste, high cost and high power consumption in realizing crossing of space division and time division. The settling solution comprises the following steps: extracting the data of one channel to be processed in the input multi-channel code; inserting the data to be processed into a preset channel; selecting the data which requires time slot scheduling from the channel, and inserting the data which requires time slot scheduling into a data storing unit. The method and the device of the invention are used for crossing space division and time division.