A method for determining detection information about search spaces, comprising: in a case that at least two search spaces are being detected by a User Equipment, UE, and a sum of initial quantities of pieces of detection information about the at least two search spaces is greater than a total quantity of pieces of detection information supported by the UE, determining, by a device, a first quantity of pieces of detection information about each of the at least two search spaces, wherein a sum of the first quantities of pieces of detection information about the at least two search spaces is smaller than or equal to the total quantity of pieces of detection information; the detection information comprises a Physical Downlink Control Channel, PDCCH, candidate or PDCCH channel estimate, characterized in that the determining, by the device, the first quantity of pieces of detection information about each of the at least two search spaces comprises: determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE, wherein the determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE comprises: determining, by the device, an allocation weight value of each search space in accordance with a predetermined configuration parameter; determining, by the device, an allocation ratio of each search space in accordance with the allocation weight value; determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the allocation ratio and the total quantity of pieces of detection information supported by the UE. in a case that at least two search spaces are being detected by a User Equipment, UE, and a sum of initial quantities of pieces of detection information about the at least two search spaces is greater than a total quantity of pieces of detection information supported by the UE, determining, by a device, a first quantity of pieces of detection information about each of the at least two search spaces, wherein a sum of the first quantities of pieces of detection information about the at least two search spaces is smaller than or equal to the total quantity of pieces of detection information; the detection information comprises a Physical Downlink Control Channel, PDCCH, candidate or PDCCH channel estimate, characterized in that the determining, by the device, the first quantity of pieces of detection information about each of the at least two search spaces comprises: determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE, wherein the determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE comprises: determining, by the device, an allocation weight value of each search space in accordance with a predetermined configuration parameter; determining, by the device, an allocation ratio of each search space in accordance with the allocation weight value; determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the allocation ratio and the total quantity of pieces of detection information supported by the UE. determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE, wherein the determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the total quantity of pieces of detection information supported by the UE comprises: determining, by the device, an allocation weight value of each search space in accordance with a predetermined configuration parameter; determining, by the device, an allocation ratio of each search space in accordance with the allocation weight value; determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the allocation ratio and the total quantity of pieces of detection information supported by the UE. determining, by the device, an allocation weight value of each search space in accordance with a predetermined configuration parameter; determining, by the device, an allocation ratio of each search space in accordance with the allocation weight value; determining, by the device, the first quantity of pieces of detection information about each search space in accordance with the allocation ratio and the total quantity of pieces of detection information supported by the UE.