A drug filling apparatus capable of preventing drugs from being bridged to each other and reducing troubles. The drug filling apparatus functions to select specific tablets from various types of tablet groups and fill the selected tablets into a vial, and includes a storage cabinet, a drug supplying section, a drug halting section, a drug conveying section, a drug filling section, a vial storing section, and a vial carrying section. A drug dispenser is installed in the drug halting section. A receptacle of the drug dispenser is constituted by an outer receptacle portion and an inner receptacle portion. When a time for filling of tablets in the drug dispenser into the vial comes, a motor of a drive section rotates according to specified signals to rotate the inner receptacle portion; that is, the rotational orientation of the inner receptacle portion is changed to reverse the inner receptacle portion.