Semi-automatic flowmeter filling machine is developed for filling free-flowing liquid according to the current situation. This filling machine is mainly used for quantitative filling of oils with different viscosities, such as soybean oil, peanut oil and rapeseed oil, gear oil, lubricating oil and hydraulic oil related to industry and vehicles. This machine can not only ensure the filling speed, but also accurately fill the grease. It is a practical equipment for small and medium-sized grease production and filling manufacturers.