Hydraulic fracturing geostress test system orientator

The invention discloses a hydraulic fracturing geostress test system orientator. Through the hydraulic fracturing geostress test system orientator, the problem that an existing orienting device is interfered by an ore magnetic field is solved, the geostress measuring reliability is improved, and the application range of a hydraulic fracturing geostress test system is expanded. The orientator comprises a light source and a drill hole position finder. When the angle of the light source is measured, the relative positions of the light source and a crack recording device are fixed. The drill holeposition finder comprises an imaging optical system. The imaging optical system conducts imaging on the light source and reads the angle, relative to a drill hole, of the light source according to animage of the light source. The hydraulic fracturing geostress test system orientator determines the orientation of the crack recording device according to the angle of the light source and then determines the orientation of a