A data transmission method, comprising: sending, by a terminal device, scheduling request information to a network device, the scheduling request information being indicative of a type of numerology supported by the terminal device; receiving, by the terminal device, uplink resource grant information from the network device, the uplink resource grant information indicating target uplink resource allocated for the terminal device, and being determined according to the scheduling request information; and performing, by the terminal device, data transmission using the target uplink resource according to the uplink resource grant information, characterized in that a type of the scheduling request information is used to indicate the type of numerology supported by the terminal device, and the method, prior to the sending, by a terminal device, scheduling request information to a network device, further comprises: determining, by the terminal device, the type of the scheduling request information according to the type of numerology supported by the terminal device, wherein different types of the scheduling request information includes different numbers of bits, the different numbers of bits of the scheduling request information are used for indicating different types of numerology supported by the terminal device, and the determining the type of the scheduling request information comprises: determining, by the terminal device, a number of bits of the scheduling request information according to the type of numerology supported by the terminal device. sending, by a terminal device, scheduling request information to a network device, the scheduling request information being indicative of a type of numerology supported by the terminal device; receiving, by the terminal device, uplink resource grant information from the network device, the uplink resource grant information indicating target uplink resource allocated for the terminal device, and being determined according to the scheduling request information; and performing, by the terminal device, data transmission using the target uplink resource according to the uplink resource grant information, characterized in that a type of the scheduling request information is used to indicate the type of numerology supported by the terminal device, and the method, prior to the sending, by a terminal device, scheduling request information to a network device, further comprises: determining, by the terminal device, the type of the scheduling request information according to the type of numerology supported by the terminal device, wherein different types of the scheduling request information includes different numbers of bits, the different numbers of bits of the scheduling request information are used for indicating different types of numerology supported by the terminal device, and the determining the type of the scheduling request information comprises: determining, by the terminal device, a number of bits of the scheduling request information according to the type of numerology supported by the terminal device. determining, by the terminal device, the type of the scheduling request information according to the type of numerology supported by the terminal device, wherein different types of the scheduling request information includes different numbers of bits, the different numbers of bits of the scheduling request information are used for indicating different types of numerology supported by the terminal device, and the determining the type of the scheduling request information comprises: determining, by the terminal device, a number of bits of the scheduling request information according to the type of numerology supported by the terminal device.