The invention relates to an array drawing method and an array maintenance method of a photovoltaic power station. In order to be conform to an actual site and reflect true representation of arrays of the photovoltaic power station, a global positioning system (GPS) positioning function is adopted, a principle that a straight line is formed by two points is utilized, and thus, points obtained by longitudes and latitudes positioned by a map are built into a regular or irregular pattern to represent the geographical position profile of the arrays; and moreover, according to the specific geographical positions of the arrays, operators can arrive at the specific positions of the arrays within a short time by using a GPS navigation function, and a device is timely maintained. With the adoption of the array drawing method of the photovoltaic power station having such structure and the array maintenance method of the photovoltaic power station, the actual site is more closely linked, versatile shapes are achieved, maintenance cost is saved, position locating is more accurate, and the methods are wide in application range.