The invention provides a field-of-view compensation measurement method for a following laser semi-active azimuth measuring device and capable of increasing the field of view of the azimuth measuring device and improving a system target detection capability, and belongs to the technical field of laser semi-active azimuth measuring device detection. The method comprises the following steps of: 1, obtaining a target laser echo emitted to the laser positioning system of the azimuth measuring device by using a four-quadrant photoelectric detector; 2: when the photosensitive surface of the four-quadrant photoelectric detector forms a crescent light spot, according to the output voltage of the four-quadrant photoelectric detector, acquiring an angle [alpha] between the target laser echo and an elastic body center axis, wherein V1, V2, V3 and V4 are four output voltages of the four-quadrant photoelectric detector, a relation between the four output voltages and the area S' of the crescent light spot of the photosensitive surface of the four-quadrant photoelectric detector is: (V2+V3)/(V1+V4)=S'APD/S, the expression of the S' includes the variable [alpha], and other variables are known. The method significantly increases the detection field of view of the azimuth measuring device to and improves the system target detection capability.