An electronic cigarette atomizing device is provided. An atomizer thereof has an atomizing rod and an electric heating filament wrapped around the atomizing rod, the atomizing rod is made of a non-glass fiber material, and includes a base and at least two wrapping bars spaced apart from each other and axially disposed on outer sides of the base. The atomizing rod axially defines an air guiding hole through the base and connected between the at least two wrapping bars for communicating with an inhaling air path. The atomizing rod is made of the non-glass fiber material, an electric heating filament directly abutted against a liquid storing portion which efficiently prevents people from inhaling harmful glass fiber particles.