A control information sending method, comprising: obtaining a resource occupied by first uplink control information, UCI, wherein the first UCI comprises channel state information, CSI, of a first report type and a hybrid automatic repeat request-acknowledgment message, HARQ-ACK, and obtaining a resource occupied by second UCI; performing channel encoding on the first UCI according to the resource occupied by the first UCI, by jointly performing channel encoding on the CSI of the first report type and the HARQ-ACK, to obtain an encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the resource occupied by the second UCI, to obtain an encoded bit sequence of the second UCI, wherein the second UCI comprises CSI of a second report type, and a performance requirement of the first UCI is higher than that of the second UCI; mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to a physical uplink channel; and sending the physical uplink channel; wherein the resource is a quantity of modulation symbols; and the performing channel encoding on the first UCI according to the resource occupied by the first UCI, to obtain an encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the resource occupied by the second UCI, to obtain an encoded bit sequence of the second UCI comprises: obtaining, according to a quantity of modulation symbols occupied by the first UCI, a quantity of encoded bits occupied by the first UCI, and obtaining, according to a quantity of modulation symbols occupied by the second UCI, a quantity of encoded bits occupied by the second UCI; and performing channel encoding on the first UCI according to the quantity of encoded bits occupied by the first UCI, to obtain the encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the quantity of encoded bits occupied by the second UCI, to obtain the encoded bit sequence of the second UCI. obtaining a resource occupied by first uplink control information, UCI, wherein the first UCI comprises channel state information, CSI, of a first report type and a hybrid automatic repeat request-acknowledgment message, HARQ-ACK, and obtaining a resource occupied by second UCI; performing channel encoding on the first UCI according to the resource occupied by the first UCI, by jointly performing channel encoding on the CSI of the first report type and the HARQ-ACK, to obtain an encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the resource occupied by the second UCI, to obtain an encoded bit sequence of the second UCI, wherein the second UCI comprises CSI of a second report type, and a performance requirement of the first UCI is higher than that of the second UCI; mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to a physical uplink channel; and sending the physical uplink channel; wherein the resource is a quantity of modulation symbols; and the performing channel encoding on the first UCI according to the resource occupied by the first UCI, to obtain an encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the resource occupied by the second UCI, to obtain an encoded bit sequence of the second UCI comprises: obtaining, according to a quantity of modulation symbols occupied by the first UCI, a quantity of encoded bits occupied by the first UCI, and obtaining, according to a quantity of modulation symbols occupied by the second UCI, a quantity of encoded bits occupied by the second UCI; and performing channel encoding on the first UCI according to the quantity of encoded bits occupied by the first UCI, to obtain the encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the quantity of encoded bits occupied by the second UCI, to obtain the encoded bit sequence of the second UCI. obtaining, according to a quantity of modulation symbols occupied by the first UCI, a quantity of encoded bits occupied by the first UCI, and obtaining, according to a quantity of modulation symbols occupied by the second UCI, a quantity of encoded bits occupied by the second UCI; and performing channel encoding on the first UCI according to the quantity of encoded bits occupied by the first UCI, to obtain the encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the quantity of encoded bits occupied by the second UCI, to obtain the encoded bit sequence of the second UCI.