The utility model relates to a standard metal measuring tool for recycling oil gas. The standard metal measuring tool comprises a main body for containing liquid, and further comprises a liquid level meter damping pipe, a liquid injection introduction pipe and a liquid level meter capable of automatically reading values, wherein a bracket is arranged on the main body; an auxiliary liquid level reading pipe which perpendicularly and upwards extends is arranged at the center of the top of the main body; a gas recycling sealing cover is arranged at the upper end of the auxiliary liquid level reading pipe; the upper ends of the liquid level meter damping pipe and the liquid injection introduction pipe extend into the gas recycling sealing cover, and the lower ends of the liquid level meter damping pipe and the liquid injection introduction pipe extend into the main body; a liquid injection sealing opening corresponding to an opening in the upper end of the liquid injection introduction pipe is formed in the top surface of the gas recycling sealing cover. According to the standard metal measuring tool for recycling oil gas, oil gas produced in a detection process can be conveyed into an existing oil gas recycling system for recycling in a place such as a gas station and an oil depot, so that the environmental pollution caused by oil gas discharging can be reduced or avoided; furthermore, the detection data are accurate and reliable.