The invention provides an oil depot oil-loading electrostatic monitoring system, which comprises an oil-loading unit, an oil-loading pipeline, a crane pipe, an oil tank, an oil flow charge density meter and a control unit, wherein the oil-loading unit is connected with the crane pipe through the oil-loading pipeline, the crane pipe is inserted into the oil tank, the oil-loading pipeline is provided with the oil flow charge density meter, and the control unit is in signal connection with the oil flow charge density meter and the oil-loading unit. The beneficial effects are that the oil flow charge density meter monitors the charge density of the oil flow in the oil-loading pipeline in real time and realizes real-time monitoring for the oil flow electrostatic charge quantity and variations thereof, an electrostatic grounding monitoring unit monitors electrostatic grounding conditions of the oil tank of a tank truck in real time, an oil surface potential monitoring unit monitors oil surface potential conditions inside the oil tank in real time, and a liquid level monitoring unit monitors liquid level conditions of an oil product in the oil tank in real time so as to enable the liquidlevel of the oil product to be kept within a safe height; and the oil depot oil-loading electrostatic monitoring system is safe, convenient, quick and accurate in data acquisition, and facilitates thestaff to know the electrostatic state of the oil product in real time so as to take measures timely to prevent electrostatic potential safety hazards.