The invention discloses an oil-gas separation analogue simulation system. The oil-gas separation analogue simulation system comprises a simulation testing analog system, a field control system and a central control system, wherein the simulation testing analog system is used for simulating an oil-gas separation process, and comprises N analogue simulation control boxes used for simulating oil-gas separation tank body equipment; the field control system comprises a programmable controller and a touch screen upper computer connected with the programmable controller; an I/O (input/output) terminal of the programmable controller is electrically connected with the N analogue simulation control boxes through a shift switch respectively; the central control system comprises a base station and a DCS (distributed control system) controller connected with the base station; the DCS controller is electrically connected with the N analogue simulation control boxes through the shift switch respectively. The oil-gas separation analogue simulation system is used for personnel training of an oil-gas separation system and personnel training of a DCS system, so that trainees can conveniently and quickly master working conditions, functions and characteristics of the oil-gas separation system.