Disclosed herein is an AC LED driving circuit. The AC LED driving circuit includes a power supply unit. An LED driving unit includes an LED lighting unit having a first LED unit to an n-th LED unit, and a plurality of switching circuit units. A dimmer driving unit includes a VCCS, an input terminal and an output terminal of which are respectively connected to a connection line between the output terminal of the rectification circuit and the first LED unit and to an output terminal of the switching circuit units, a reference voltage supply unit, and a common resistor, a first end of which is connected to a negative terminal of the reference voltage supply unit, and a second end of which is connected in common to an output line of the VCCS and to an output terminal of the switching circuit units.