The invention discloses a balance possessing a currency detection function. The balance comprises: a pedestal, a motherboard, a sensor, a weighing disc support, a leveling bolt, a power supply, a weighing disc and an operation panel. The balance is characterized in that: the operation panel is provide with a digital display screen and a currency detection function area; the currency detection function area is mainly formed by a ultraviolet ray radiation lamp, a photoelectric sensor, a lens group, a silicon photocell, an optical filter, a built-in circuit and a control chip; a ultraviolet ray radiation lamp switch and a counterfeit money alarm are arranged besides the currency detection function area. The invention discloses the balance possessing the currency detection function. A balance structure is designed reasonably. The function is unique. While carrying out accurate weighing, the balance can help people identify the paper currency that can not be detected manually. Professional currency detection equipment is not needed. usage costs can be reduced. The balance can be used conveniently and rapidly and is especially suitable for being used in major supermarkets.