An electronic cigarette and an atomizer device thereof are provided. The atomizer device includes a housing, a liquid reservoir chamber (115) formed in the housing, and a adjusting valve (13) engaging with the housing； a liquid injection channel (1131) is defined in the housing for injecting liquid solution into the liquid reservoir chamber (115)； a first opening (1311) corresponding to the liquid injection channel (1131) is defined in the adjusting valve (13)； the adjusting valve (13) is movable between a first position and a second position across a surface of the housing； when the adjusting valve is in the first position, the first opening (1311) communicates with the liquid injection channel (1131) to open the liquid injection channel (1131), and when the adjusting valve (13) is in the second position, the first opening (1311) misaligns with the liquid injection channel (1131) to close the liquid injection channel (1131).
