A problem demarcation method, comprising: acquiring a first key quality indicator, KQI, wherein the first KQI refers to one of one or more abnormal KQIs among KQIs; and determining a network location of the first KQI according to a demarcation indicator of the first KQI, wherein the network location comprises: a wireless side, a core network side, a terminal side, and a serving SP side, and the demarcation indicator is an indicator used to determine a network location causing a KQI exception; wherein if the network location comprises the wireless side or the core network side, after the determining a network location of the first KQI according to a demarcation indicator of the first KQI, the method further comprises: acquiring a locating indicator corresponding to the first KQI, wherein the locating indicator is used to determine a reason causing a KQI exception; and determining, according to the locating indicator, a reason causing the first KQI in the network location; wherein the locating indicator comprises at least one of a measurement report, MR, and a call history record, CHR; wherein in a case in which the locating indicator comprises the MR, the determining, according to the locating indicator, a reason causing the first KQI in the network location comprises: acquiring a user identifier of the MR, an MR time, a user identifier corresponding to the first KQI, a start time of the first KQI, and an end time of the first KQI, wherein the MR time refers to a time of receiving the MR; if the user identifier of the MR is the same as the user identifier corresponding to the first KQI, and the sum of the MR time and a first time is greater than the start time of the first KQI and is less than the end time of the first KQI, associating a parameter of the MR with the first KQI, wherein the first time is a preset acquisition period of the MR; and determining, according to the parameter of the MR associated with the first KQI, the reason causing the first KQI in the network location. acquiring a first key quality indicator, KQI, wherein the first KQI refers to one of one or more abnormal KQIs among KQIs; and determining a network location of the first KQI according to a demarcation indicator of the first KQI, wherein the network location comprises: a wireless side, a core network side, a terminal side, and a serving SP side, and the demarcation indicator is an indicator used to determine a network location causing a KQI exception; wherein if the network location comprises the wireless side or the core network side, after the determining a network location of the first KQI according to a demarcation indicator of the first KQI, the method further comprises: acquiring a locating indicator corresponding to the first KQI, wherein the locating indicator is used to determine a reason causing a KQI exception; and determining, according to the locating indicator, a reason causing the first KQI in the network location; acquiring a locating indicator corresponding to the first KQI, wherein the locating indicator is used to determine a reason causing a KQI exception; and determining, according to the locating indicator, a reason causing the first KQI in the network location; wherein the locating indicator comprises at least one of a measurement report, MR, and a call history record, CHR; wherein in a case in which the locating indicator comprises the MR, the determining, according to the locating indicator, a reason causing the first KQI in the network location comprises: acquiring a user identifier of the MR, an MR time, a user identifier corresponding to the first KQI, a start time of the first KQI, and an end time of the first KQI, wherein the MR time refers to a time of receiving the MR; if the user identifier of the MR is the same as the user identifier corresponding to the first KQI, and the sum of the MR time and a first time is greater than the start time of the first KQI and is less than the end time of the first KQI, associating a parameter of the MR with the first KQI, wherein the first time is a preset acquisition period of the MR; and determining, according to the parameter of the MR associated with the first KQI, the reason causing the first KQI in the network location. acquiring a user identifier of the MR, an MR time, a user identifier corresponding to the first KQI, a start time of the first KQI, and an end time of the first KQI, wherein the MR time refers to a time of receiving the MR; if the user identifier of the MR is the same as the user identifier corresponding to the first KQI, and the sum of the MR time and a first time is greater than the start time of the first KQI and is less than the end time of the first KQI, associating a parameter of the MR with the first KQI, wherein the first time is a preset acquisition period of the MR; and determining, according to the parameter of the MR associated with the first KQI, the reason causing the first KQI in the network location.