The invention provides an electronic cigarette which comprises a control chip. The control chip comprises a driving module, an open circuit detecting module, a short circuit detecting module and a control module, wherein the driving module is used for outputting currents to drive the electronic cigarette to work, the open circuit detecting module is electrically connected with the driving module and used for sampling and detecting the currents and giving out open circuit enable signals when the sampled currents are smaller than an internal reference current, the short circuit detecting module is electrically connected with the driving module and used for sampling and detecting the currents and giving out short circuit enable signals when the sampled currents are larger that the internal reference current, and the control module is electrically connected with the driving module and used for receiving the open circuit enable signals and the short circuit enable signals and giving out closing signals to the driving module. The electronic cigarette has the functions of open circuit detection and short circuit detection and is simple in design and convenient to assemble.