An electronic cigarette, comprising: a) a cigarette holder converter assembly (A), the cigarette holder converter assembly (A) comprising: a cigarette holder part and a converter part; the cigarette holder part comprising: an inner casing , a cigarette holder , and a first sealing ring for sealing the cigarette holder ; the converter part comprising: a cigarette holder connector , an upper sealing ring , an inner sealing ring , and an outer sealing ring ; b) an atomization core assembly (B); c) a base assembly (C); and d) an e-liquid storage assembly (D), the e-liquid storage assembly (D) comprising a first regulating ring comprising a neck; wherein: the inner casing , the cigarette holder , and the first sealing ring are integratedly assembled to form the cigarette holder part; the cigarette holder connector , the upper sealing ring , the inner sealing ring , and the outer sealing ring are integratedly assembled to form the converter part; the cigarette holder part is connected to the e-liquid storage assembly (D) via the cigarette holder connector ; the cigarette holder part and the converter part are connected through interference fit; the cigarette holder converter assembly (A) and the e-liquid storage assembly (D) are connected through interference fit; the cigarette holder converter assembly (A) is locked by the neck when the cigarette holder converter assembly (A) is inserted into the e-liquid storage assembly (D) to a target position; and when the cigarette holder converter assembly (A) is inserted into the e-liquid storage assembly (D) and reaches the target position, the cigarette holder converter assembly (A) is adapted to rotate to regulate a gas flow via a top part of the electronic cigarette; characterized in that the cigarette holder converter assembly (A), the e-liquid storage assembly (D), the atomization core assembly (B), and the base assembly (C) are connected in sequence. a) a cigarette holder converter assembly (A), the cigarette holder converter assembly (A) comprising: a cigarette holder part and a converter part; the cigarette holder part comprising: an inner casing , a cigarette holder , and a first sealing ring for sealing the cigarette holder ; the converter part comprising: a cigarette holder connector , an upper sealing ring , an inner sealing ring , and an outer sealing ring ; b) an atomization core assembly (B); c) a base assembly (C); and d) an e-liquid storage assembly (D), the e-liquid storage assembly (D) comprising a first regulating ring comprising a neck; the inner casing , the cigarette holder , and the first sealing ring are integratedly assembled to form the cigarette holder part; the cigarette holder connector , the upper sealing ring , the inner sealing ring , and the outer sealing ring are integratedly assembled to form the converter part; the cigarette holder part is connected to the e-liquid storage assembly (D) via the cigarette holder connector ; the cigarette holder part and the converter part are connected through interference fit; the cigarette holder converter assembly (A) and the e-liquid storage assembly (D) are connected through interference fit; the cigarette holder converter assembly (A) is locked by the neck when the cigarette holder converter assembly (A) is inserted into the e-liquid storage assembly (D) to a target position; and when the cigarette holder converter assembly (A) is inserted into the e-liquid storage assembly (D) and reaches the target position, the cigarette holder converter assembly (A) is adapted to rotate to regulate a gas flow via a top part of the electronic cigarette; characterized in that the cigarette holder converter assembly (A), the e-liquid storage assembly (D), the atomization core assembly (B), and the base assembly (C) are connected in sequence. <EOS>