An electronic cigarette capable of controlling temperature, comprising a housing (10), a liquid storage device (101) within the housing (10), an atomization assembly, a power source (102) and a plate ( 103) of control circuit provided with a SW smoking switch, the atomization assembly comprising a heating unit and conductors (20) thereof, the material of the heating unit and / or conductors being thermosensitive, whose resistance varies together with the temperature in a certain proportion, the control circuit board (103) comprising a power supply management module (104), and, when the smoking switch SW is on, the source management module (104) The power supply determines the corresponding temperature of the heating unit and its conductors, by continuously detecting their resistance, and sends a corresponding control signal to make the unit d of heating and its conductors are connected or disconnected with respect to the power supply； characterized in that the power supply management module further comprises a chip U1, a triode Q4, a metal oxide field effect semiconductor transistor M1, a third resistor R3, a fifth resistor R5, a sixth resistor R6, in where the U1 chip has multiple pins, where a first pin is a KEY 1 end of on / off signal, a fourth pin is a BT + end of power supply signal, a ninth pin is a HOT end of control signal , a thirteenth pin is a grounding end and a sixteenth pin is a temperature signal detection end FB； one end of the smoking switch SW is connected to ground, while the other end thereof is connected to the KEY 1 end； one end of the third resistor R3 is connected to the HOT end, while the other end of it is connected to the base of the triode Q4； the emitter of triode Q4 is connected to ground, and a fourth resistor R4 is provided between the base and emitter thereof, the collector of triode Q4 is connected to both the gate of the metal oxide field effect semiconductor transistor M1 and to one end of the fifth resistor R5, while the other e
