An atomizing device comprises an atomizing seat, and an atomizer having a heating wire and disposed at one side of the atomizing seat. A first electrode assembly is disposed at another side of the atomizing seat away from the atomizer. The first electrode assembly includes a first seat body and a first electrode post, two of which two of which are insulated from each other and respectively connected with two ends of the heating wire to form the positive and negative electrode. The first seat body resists the atomizing seat and clamps a first end of the heating wire therebetween, and the first electrode post resists the atomizing seat and clamps a second end of the heating wire therebetween. The heating wire is secured by the squeezing of the atomizing seat and the first electrode assembly, the atomizing sleeve, which has a stable structure and low cost.
