The invention discloses a solar array management method, which comprises the following steps: detecting the open circuit voltage, the working voltage, the open circuit current, the working current and the total working current of each solar array one by one every two self-inspection periods; determining whether a fault occurs in the solar array according to the open circuit voltage, the working current, the open circuit current and the working circuit and, if so, adding one to a counter; and determining whether the number of the counter is equal to a preset value and, if so, sending alarm. The fault can be determined according to the fact that the number of the counter is equal to the preset value other than according to one result, thereby maximally reducing error determination, obviating false alarm and improving alarm accuracy.