The utility model relates to a portable hanging ring structure of a computer case, belonging to the technical field of computer peripheral parts and fittings, which is characterized in that: the portable hanging ring structure comprises a hanging ring device; the hanging ring device is arranged on the computer case body; the hanging ring device comprises a rotatable hanging ring, an upper fixed plate and a lower fixed plate; a rotating part is arranged on the end part of the rotatable hanging ring; the upper fixed plate and the lower fixed plate are fixedly connected, forming an installation part to install the rotating part. With the adopted structure, the body can be lifted using single hand through the hanging ring and can be balanced; therefore, the use is very convenient; besides, when a corresponding number of through holes is opened on the case body, the hanging ring can be arranged and therefore the hanging ring structure can be applied to most computer case bodies.