The invention discloses a forward-rotating guide-in automatic pressing machine. The forward-rotating guide-in automatic pressing machine comprises a bearing feeding mechanism, a pressing mechanism, an electric cabinet and a reflecting type photoelectric sensor; the electric cabinet is fixed behind the pressing mechanism; the bearing feeding mechanism is connected with the electric cabinet and located on the left side of the pressing mechanism and the electric cabinet; the pressing mechanism comprises an assembling machine base fixed to the ground; an upper hood frame is fixed to the assembling machine base; a bearing material grabbing manipulator is fixed to the left end of the assembling machine base; a rotating disk device is fixed to the center of the assembling machine base; clamps are arrayed on a rotating disk of the rotating disk device around the circle center of the rotating disk in a quartering manner; and an oil injecting device, a bearing pressing device and a snap spring pressing device are correspondingly arranged at three peripheries, corresponding to the clamps, of the assembling machine base.