A cosmetic container, comprising: a container body having an upper housing and a lower housing connected with a rotary mechanism to be rotatable relative to each other and a pressing seat mounted in the upper housing and connected with the rotary mechanism; the upper housing having a first positioning structure formed in an external surface of the upper housing near a top of the upper housing; the lower housing having a second positioning structure formed in an external surface of the lower housing near a bottom of the lower housing; and the lower housing rotated relative to the upper housing to drive the rotary mechanism to move the pressing seat to extend out from the top of the upper housing or to retract into the top of the upper housing; an upper casing detachably sleeved on and surrounding the upper housing of the container body and having an opening formed in a top of the upper casing; and a first engaging structure formed in an internal surface of the upper casing and orientationally engaged with the first positioning structure to rotate the upper housing with the upper casing; and a lower casing detachably sleeved on and surrounding the lower housing of the container body and having a second engaging structure formed in an internal surface of the lower casing and orientationally engaged with the second positioning structure to rotate the lower housing with the lower casing, and characterized in that: the first positioning structure has at least one engaging groove formed in and transversally extending along the external surface of the upper housing; the second positioning structure has at least one engaging groove formed in and transversally extending along the external surface of the lower housing; the first engaging structure has at least one engaging block formed on and transversally extending along the internal surface of the upper casing, and mounted in and engaged with the at least one engaging groove of the first positioning structure; and the second engaging structure has at least one engaging block formed on and transversally extending along the internal surface of the lower casing, and mounted in and engaged with the at least one engaging groove of the second positioning structure. a container body having an upper housing and a lower housing connected with a rotary mechanism to be rotatable relative to each other and a pressing seat mounted in the upper housing and connected with the rotary mechanism; the upper housing having a first positioning structure formed in an external surface of the upper housing near a top of the upper housing; the lower housing having a second positioning structure formed in an external surface of the lower housing near a bottom of the lower housing; and the lower housing rotated relative to the upper housing to drive the rotary mechanism to move the pressing seat to extend out from the top of the upper housing or to retract into the top of the upper housing; an upper casing detachably sleeved on and surrounding the upper housing of the container body and having an opening formed in a top of the upper casing; and a first engaging structure formed in an internal surface of the upper casing and orientationally engaged with the first positioning structure to rotate the upper housing with the upper casing; and a lower casing detachably sleeved on and surrounding the lower housing of the container body and having a second engaging structure formed in an internal surface of the lower casing and orientationally engaged with the second positioning structure to rotate the lower housing with the lower casing, and characterized in that: the first positioning structure has at least one engaging groove formed in and transversally extending along the external surface of the upper housing; the second positioning structure has at least one engaging groove formed in and transversally extending along the external surface of the lower housing; the first engaging structure has at least one engaging block formed on and transversally extending along the internal surface of the upper casing, and mounted in and engaged with the at least one engaging groove of the first positioning structure; and the second engaging structure has at least one engaging block formed on and transversally extending along the internal surface of the lower casing, and mounted in and engaged with the at least one engaging groove of the second positioning structure.