The present invention is a kind relates to electronic cigarette, the suction rod and comprising a power load, of which the suction rod and between the power supply load is adsorbed by the magnetic force are coupled to each other integrally, and that the joined together ends of the suction rod and bonding end portions of the coupling power load which includes an engagement member that is made of each steel material, and a permanent magnetic material provided in at least one of the inside of the coupling end of the suction load on the coupling end and the power load, the suction rod engaging end soon as between the engaging members and the engaging members of the power load coupling end is coupled inserted mutual able to subtract pulling addition, is cross-coupled by using the attractive force of the permanent magnetic body, one end of the two engaging members are mutually attracted to the top of the permanent magnetic material coupled to abut, lower end of the permanent magnetic material is supported by an elastic member, the permanent magnetic body is fixed in the coupling end of the suction loading or power loading over a steel fixing sleeve, and the engagement member are both generally cylindrical body, and said permanent magnetic body is a circular ring structure, the first electrode is inserted and installed in the center of the ring-like structure of the permanent magnetic material, an insulator is provided between these. The electronic cigarette is convenient for maintenance and replacement detached quickly.