Abstract: The present invention is about a data transmission method and a ping-pong DMA architecture. The method includes: acquiring the current state of an initialized register, determining a state type corresponding to the current state of the register, and performing an operation corresponding to the state type based on the state type determined by the register, the state type includes an initialization state, a state that the first DMA module is used, and a state that the second DMA module is used, the state that the first DMA module is used means a state when a previous batch of data is transmitted by the first DMA module, and the state that the second DMA module is used means a state when the previous batch of data is transmitted by the second DMA module.