The invention provides a method for slag/iron liquid level measurement in high titanium slag production in a closed electric furnace, which utilizes an electric hoist (1) and a liquid level measuring rod (4). When the liquid level is measured, the liquid level measuring rod (4) is rapidly inserted into a molten pool through a measuring hole; when an iron chain at the upper end of the measuring rod is not vertical, the measuring rod is hoisted to an appointed position rapidly; and the liquid level is calculated according to the length of the slag and iron adhered to the measuring rod. The measurement method has the characteristics of high precision, low cost and simple maintenance and utilizes simple structures.