Double ended automatic piston type liquid filling machine is improved on the basis of the original filling machine series products, and added some additional functions. Make the product in the use of operation, accuracy error, installation machine adjustment, equipment cleaning, maintenance, and more simple and convenient. Widely used in chemical, oil and other industries, can be different high viscosity fluid filling. The design of the machine is compact and reasonable, the shape is simple and beautiful, and the filling quantity is easy to adjust. The machine has two synchronous filling heads, filling material quickly and accurately. The German FESTO, Taiwan AirTac, SHAKO pneumatic components and electronic components in Taiwan Delta, stable performance. Material contact parts are made of 316L stainless steel. The Han Guoguang eye device, PLC Taiwan and France electrical components. Adjust the convenience, no bottle filling, filling volume is accurate and has the count function. The anti dripping and drawing filling bulkhead, anti high foam products filling lifting system, ensure that the bottle opening positioning positioning system and liquid level control system.