The present invention relates to an electronic cigarette atomizing device. An atomizer includes an atomizing rod and an electric heating filament wrapped around the atomizing rod, wherein the atomizing rod has a hollow tubular structure made of a non-glass fiber material and a high temperature insulating material. A middle of the atomizing rod is equipped with a liquid guiding rope made of a non-glass fiber material. Multiple liquid guiding holes are radially formed on and penetrate side walls of the atomizing rod in such a manner that a cigarette liquid of the liquid guiding rope is capable of flowing through the liquid guiding holes to the electric heating filament for being atomized. A liquid guiding part of the atomizer is made of a non glass fiber material so as to prevent people from inhaling harmful glass fiber particles.