The invention is suitable for the field of manufacturing optical active components and optical passive components in the optical communication technique, and provides a method and equipment for automatically controlling the press mounting of an assembly part. The method comprises: a switch is started to begin the process of press mounting; before a workpiece is pressed and mounted at a preset position by a pressure head, real-time collection of press mounting signal of the pressure head and detection that whether the press mounting signal exceeds a preset pre-locking upper limit value or not are carried out, if yes, press mounting is stopped immediately, if no, press mounting is continued; when the workpiece is pressed and mounted at the preset position by the pressure head, the instantaneously collected pressure value of the pressure head towards the workpiece is recorded and stored, and whether the pressure value is between a preset post-locking upper limit value and a post-locking lower limit value or not is judged; if yes, the press mounting is continued, if no, the press mounting is stopped immediately; and when the pressure head is downwards pressed, timing is started, and whether the counted time reaches the preset press mounting time limit or not is real time monitored in the process of press mounting, and if yes, the press mounting is stopped, if no, the press mounting is continued.