A method for determining a parameter value, performed by a user equipment in sidelink communication, wherein the method comprises: in a case that a current time is a parameter value adjustment time, determining a target numerical value of a target parameter at the current time according to a target mode, wherein the target parameter comprises at least one of an interference threshold, a signal strength threshold, a channel occupancy rate threshold, a channel busy rate threshold and a distance threshold; the target mode is at least one of: determining the target numerical value according to a target mapping relationship, wherein the target mapping relationship comprises a mapping relationship between a value of the target parameter and first target information, and the first target information comprises at least one of a target time length, a target time length ratio, a value of a counter and a number of times of retransmission; and according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value, wherein the initial value of the target parameter is related to the first target information; the target numerical value of the target parameter is used to perform resource monitoring or resource selection by the user equipment; and in a case that the target mode is to determine the target numerical value according to the target mapping relationship, the first target information comprises a target time length or a target time length ratio, wherein the target time length comprises a first time length or a second time length, the first time length is a time length between a timing start time and the current time, the second time length is a time length between the current time and a latest time meeting a transmission delay requirement, wherein the user equipment does not perform information transmission within the first time length, and the target time length ratio is a ratio of the time length between the timing start time and the current time to the delay requirement. in a case that a current time is a parameter value adjustment time, determining a target numerical value of a target parameter at the current time according to a target mode, wherein the target parameter comprises at least one of an interference threshold, a signal strength threshold, a channel occupancy rate threshold, a channel busy rate threshold and a distance threshold; the target mode is at least one of: determining the target numerical value according to a target mapping relationship, wherein the target mapping relationship comprises a mapping relationship between a value of the target parameter and first target information, and the first target information comprises at least one of a target time length, a target time length ratio, a value of a counter and a number of times of retransmission; and according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value, wherein the initial value of the target parameter is related to the first target information; the target numerical value of the target parameter is used to perform resource monitoring or resource selection by the user equipment; and in a case that the target mode is to determine the target numerical value according to the target mapping relationship, the first target information comprises a target time length or a target time length ratio, wherein the target time length comprises a first time length or a second time length, the first time length is a time length between a timing start time and the current time, the second time length is a time length between the current time and a latest time meeting a transmission delay requirement, wherein the user equipment does not perform information transmission within the first time length, and the target time length ratio is a ratio of the time length between the timing start time and the current time to the delay requirement. determining the target numerical value according to a target mapping relationship, wherein the target mapping relationship comprises a mapping relationship between a value of the target parameter and first target information, and the first target information comprises at least one of a target time length, a target time length ratio, a value of a counter and a number of times of retransmission; and according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value, wherein the initial value of the target parameter is related to the first target information; the target numerical value of the target parameter is used to perform resource monitoring or resource selection by the user equipment; and in a case that the target mode is to determine the target numerical value according to the target mapping relationship, the first target information comprises a target time length or a target time length ratio, wherein the target time length comprises a first time length or a second time length, the first time length is a time length between a timing start time and the current time, the second time length is a time length between the current time and a latest time meeting a transmission delay requirement, wherein the user equipment does not perform information transmission within the first time length, and the target time length ratio is a ratio of the time length between the timing start time and the current time to the delay requirement.