The present invention provides an electronic cigarette with a battery rod disposed inside. The electronic cigarette comprises an inhalation rod and a battery rod which are mutually connected to form an integral. A connecting end of the inhalation rod disposes a first connector. A connecting end of the battery rod disposes a second connector. The battery rod stretches into the inhalation rod from the connecting end of the inhalation rod, and is accommodated and fixed in the inhalation rod. The connecting end of the inhalation rod and the connecting end of the battery rod are threadedly connected by using the first connector and the second connector to be screwing connected. The electronic cigarette has a shorter length, the structure is more compact, and the assembly is convenient, and the electronic cigarette has a greater amount of aerosol, facilitating to observe the balance of the e-liquid and being able to reduce or avoid users to inhale in e-liquid.
