The invention relates to the field of environmental engineering and provides a system for oil testing acid gas treatment in the oil and gas field oil testing process. The system comprises a liquid storage container, an acid-resistant reaction kettle and a control system. The liquid storage container is communicated with the acid-resistant reaction kettle through a liquid inlet pipe, the liquid inlet pipe is provided with a plunger pump for pressurization, a wind-breakage grid and a sprayer are arranged in the acid-resistant reaction kettle, the sprayer is communicated with the liquid inlet pipe, one end of the acid-resistant reaction kettle is provided with a first air inlet, the other end of the acid-resistant reaction kettle is provided with a first air outlet, the side wall of the acid-resistant reaction kettle is further provided with a liquid outlet, the first air outlet is higher than the liquid outlet, and the control system is in circuit connection with the plunger pump. The invention further provides a system for waste gas treatment. The system for waste gas treatment comprises the system for oil testing acid gas treatment in the oil and gas field oil testing process. The system for waste gas treatment is high in treatment efficiency, and secondary pollution is not generated in the treatment process.