An information feedback method, comprising: receiving, by a terminal, a scheduling instruction from a base station, wherein the terminal is configured with a plurality of unlicensed channel resources by the base station, the scheduling instruction carries information for the terminal to determine a first transmission position for feeding back a hybrid automatic repeat request, HARQ, and the first transmission position is on a first unlicensed channel resource; obtaining, by the terminal, the first transmission position according to the scheduling instruction, and detecting, by the terminal, whether the first transmission position is in an available state; determining, by the terminal, a second transmission position for feeding back the HARQ in response to detecting that the first transmission position is in a non-available state, wherein the second transmission position is on a second unlicensed channel resource; and sending, by the terminal, information on HARQ feedback to the base station at the second transmission position in response to detecting that the second transmission position is in the available state; wherein determining, by the terminal, the second transmission position for feeding back the HARQ comprises: determining the second transmission position according to a set rule; wherein the set rule comprises a first correspondence between second unlicensed channel resource and specified time length, and a specified time length refers to a time interval between the first transmission position on the first unlicensed channel resource for the HARQ feedback and the second transmission position on the second unlicensed channel resource for HARQ backup feedback; and wherein determining the second transmission position on the second unlicensed channel resource according to the set rule comprises: obtaining second time domain position information for determining the second transmission position according to the first correspondence; and determining the second transmission position according to the obtained second time domain position information. receiving, by a terminal, a scheduling instruction from a base station, wherein the terminal is configured with a plurality of unlicensed channel resources by the base station, the scheduling instruction carries information for the terminal to determine a first transmission position for feeding back a hybrid automatic repeat request, HARQ, and the first transmission position is on a first unlicensed channel resource; obtaining, by the terminal, the first transmission position according to the scheduling instruction, and detecting, by the terminal, whether the first transmission position is in an available state; determining, by the terminal, a second transmission position for feeding back the HARQ in response to detecting that the first transmission position is in a non-available state, wherein the second transmission position is on a second unlicensed channel resource; and sending, by the terminal, information on HARQ feedback to the base station at the second transmission position in response to detecting that the second transmission position is in the available state; wherein determining, by the terminal, the second transmission position for feeding back the HARQ comprises: determining the second transmission position according to a set rule; wherein the set rule comprises a first correspondence between second unlicensed channel resource and specified time length, and a specified time length refers to a time interval between the first transmission position on the first unlicensed channel resource for the HARQ feedback and the second transmission position on the second unlicensed channel resource for HARQ backup feedback; and wherein determining the second transmission position on the second unlicensed channel resource according to the set rule comprises: obtaining second time domain position information for determining the second transmission position according to the first correspondence; and determining the second transmission position according to the obtained second time domain position information. determining the second transmission position according to a set rule; wherein the set rule comprises a first correspondence between second unlicensed channel resource and specified time length, and a specified time length refers to a time interval between the first transmission position on the first unlicensed channel resource for the HARQ feedback and the second transmission position on the second unlicensed channel resource for HARQ backup feedback; and wherein determining the second transmission position on the second unlicensed channel resource according to the set rule comprises: obtaining second time domain position information for determining the second transmission position according to the first correspondence; and determining the second transmission position according to the obtained second time domain position information. obtaining second time domain position information for determining the second transmission position according to the first correspondence; and determining the second transmission position according to the obtained second time domain position information.