The invention discloses a Type-C-based
data transmission method and device, and the method comprises the steps: starting a power supply channel in response to an access
signal of a male interface, and transmitting a
verification request to the male interface through a first
verification module, so as to enable the male interface to transmit
verification data; if the first verification module receives the verification data within a preset time, matching the verification data with preset standard data, and if the matching is successful, starting a
data transmission channel and a debugging
communication channel; performing
data transmission with the male interface based on the data
transmission channel; and performing debugging analysis based on the debugging
communication channel and the male interface. According to the invention, the functions of power supply, high-speed data transmission and
encryption debugging communication can be simultaneously realized based on one Type-C interface, and the security of data transmission is ensured.