The invention discloses an electronic control type inching downward pushing mechanism of a compressor inner core press fitting machine. The electronic control type inching downward pushing mechanism of the compressor inner core press fitting machine comprises a bottom plate, a box type moving frame, a downward pressing air cylinder, box type moving frame sliding blocks, box type moving frame sliding rails, a servo electronic control downward pressing mechanism and a pneumatic inductance press fitting combined head. The two parallel box type moving frame sliding rails are installed on the inner side face of the bottom plate and provided with the box type moving frame sliding blocks capable of moving up and down, the box type moving frame sliding blocks are fixed to the side face of the box type moving frame, the downward pressing air cylinder is installed on the top of the box type moving frame, a piston rod of the downward pressing air cylinder is connected with the servo electronic control downward pressing mechanism, the servo electronic control downward pressing mechanism is installed in the box type moving frame, and the pneumatic inductance press fitting combined head is installed on a downward pressing rod of the servo electronic control downward pressing mechanism. By means of the mode, the electronic control type inching downward pushing mechanism can replace workers to install compressor inner cores, and is high in efficiency, good in installation parallelism and capable of ensuring the installation precision.