Abstract: A fastening device for cloth dolls and decorative articles comprises a fastening assembly and a button ring. The fastening assembly has a pin head portion with a relatively large diameter. There is a pin hole formed axially in the pin head portion. A fastening portion is formed behind the pin head portion. There is an annular fastening groove formed on the fastening portion. The fastening assembly runs through a through hole disposed on the cloth doll's skin. A button ring is used to engage with the fastening groove, thus to firmly secure the fastening assembly on the cloth doll. The decorative article has a protrusive pin disposed at the corresponding position of the pin hole on the cloth doll. Thereby, the decorative article can be movably fastened on the cloth doll.