A capsule with good disintegration properties that can quickly display its contents efficacy as well as a method for preparing the same are provided. More specifically, provided is a capsule comprising a shell comprising low-substituted cellulose ether. Also, provided is a method for preparing a hard capsule comprising the low-substituted cellulose ether comprising a step of covering a pin for forming the hard capsule with the low-substituted cellulose ether by immersing the pin in an alkaline solution of the low-substituted cellulose ether a step of forming the low-substituted cellulose on a surface of the pin into a gel by further immersing the covered pin in an aqueous acid solution a step of washing by immersing the pin whose surface has been covered with the gel in water and a step of drying.
