This application relates to a vaporization device and a method thereof. The provided vaporization device includes a cartridge and a body. The cartridge includes a housing, a heating component and a heating component base. The housing and the heating component base define an air inlet channel, the air inlet channel comprises a first portion and a second portion, and the diameter of the first portion is greater than the diameter of the second portion. The housing has a bottom portion, the housing has a first sectional profile at a first distance from the bottom portion, and the housing has a second sectional profile at a second distance from the bottom portion. The body has an accommodation portion. The accommodation portion covers at least a portion of the cartridge when the cartridge is removably engaged with the body.