An automatically and continuously controlled drilling device is applied to the field of oil and gas drilling, and adopts the structure that a human-computer interaction platform is connected with the ground segment of an MWD (Measurement While Drilling) instrument or an LWD (Logging While Drilling) instrument and also connected with a top drilling drive device; a drill string is connected with the lower end of a main shaft of the top drilling drive device; the lower end of the drill string is connected with the underground segment of the MWD instrument or the LWD instrument; a steering screw drill is connected with the lower end of the underground segment of the MWD instrument or the LWD instrument; and a drill is connected with the lower end of the steering screw drill assembly. The utility model has the effects that the rotation speed and rotation angle of the main shaft of the top drilling drive device can be automatically controlled according to the comparative analysis on geometric or geological parameters and designed track which are measured by the MWD (LWD) system, so that the orientation of tool face is adjusted promptly, and the drilling of a direction well is continuously controlled. The automatically and continuously controlled drilling device can effectively improve the control precision of well track, shortens the drilling time and reduces the drilling cost.