The invention discloses an inductance type air cylinder displacement ejection module of a compressor inner core pressing fit machine. The inductance type air cylinder displacement ejection module of the compressor inner core pressing fit machine comprises electric induction displacement sensors, displacement sensor locking rings, a displacement sensor mounting flange, displacement sensor mounting flange connection pillars and a pneumatic single-acting air cylinder displacement ejection head. The five electric induction displacement sensors are connected to the displacement sensor mounting flange through threads in a screwed mode and are provided with the displacement sensor locking rings for fixing the up-down positions of the electric induction displacement sensors respectively. The middle of the displacement sensor mounting flange is provided with the two displacement sensor mounting flange connection pillars. The displacement sensor mounting flange connection pillars are connected with a single-acting air cylinder fixing flange plate of the pneumatic single-acting air cylinder displacement ejection head. By means of the mode, the inductance type air cylinder displacement ejection module can replace workers to mount a compressor inner core, is high in efficiency and good in mounting parallelism and guarantees the mounting precision, and the position detection function is achieved in the mounting process.