The utility model provides a flexible package battery's structure, utmost point ear is big with the internal resistance of battery electrodes piece welded connection thereby it can solve current flexible package battery, and calorific capacity and power consumption are big, influence the problem of flexible package battery's performance, including a plurality of positive plates and a plurality of negative pole piece of parcel in the packing shell, separate through the diaphragm between positive plate and the negative pole piece, the intussuseption of packing shell is filled with electrolyte, the anodal substrate of positive plate for scribbling cathode material, the negative pole substrate of negative pole piece for scribbling anode material, anodal substrate is equipped with the positive pole and draws forth the end, the negative pole substrate has cathode extraction end, its characterized in that: the positive pole is drawn forth the end and is extended the packing shell constitutes anodal ear, the cathode extraction end extends the packing shell constitutes the negative pole ear.