The utility model discloses a purification treatment system is concentrated to oil processing test device waste gas, the system includes oil and gas separator, transparent looking glass, alkali washing tank, total low pressure exhausting pipeline, settling cask, exhaust purification adsorption tower, oil and gas separator's gas exports pipeline divides two the tunnel, wherein first via management line and alkali washing tank entry linkage, another way management line and transparent looking glass entry linkage, transparent looking glass export management line and total low pressure exhausting pipeline entry linkage, total low pressure exhausting pipeline and settling cask entry linkage, settling cask gas exports management line and exhaust purification adsorption tower entry linkage. The utility model discloses a waste gas concentrates purification treatment system to improve effect and the handling capacity of handling waste gas, has improved operational environment, prevents outside environmental pollution, has alleviateed operator's intensity of labour, and the characteristics that have simple structure, easy maintenance and easily operate.