A data connection cable for virtual reality glasses and an external electronic device comprising a second interface , the virtual reality glasses comprising an eyeglass body , the eyeglass body comprises a first fastening portion and a second fastening portion , the first fastening portion can fasten one end of the external electronic device , and the second fastening portion can fasten the opposite end of the external electronic device , wherein the first fastening portion comprises a receiving space and a protruding block on a side wall of the receiving space , the data connection cable comprising: a first connecting plug at a first end (A) of the data connection cable , the first connecting plug being fitted to a first interface on an eyeglass body of the virtual reality glasses , such that the data connection cable is detachably connected to the eyeglass body , and a second connecting plug at a second end (B) of the data connection cable , the second connecting plug being fitted to a second interface of an external electronic device assembled to the eyeglass body , a first connecting portion at the first end (A), the first connecting portion configured to secure the first connecting plug with the data connection cable ; a second connecting portion at the second end (B), the second connecting portion configured to secure the second connecting plug with the data connection cable ; and a data cable body between the first end (A) and the second end (B), wherein the second connecting portion is detachably connected to the first fastening portion ; characterized in that at least a part of the data cable body and the first connecting portion are receivable in a first groove of the virtual reality glasses , the second connecting portion comprises a second groove , the second groove is fitted to the protruding block , such that the second connecting portion is connected to the first fastening portion by means of the fitting between the protruding block and the second groove . a first connecting plug at a first end (A) of the data connection cable , the first connecting plug being fitted to a first interface on an eyeglass body of the virtual reality glasses , such that the data connection cable is detachably connected to the eyeglass body , and a second connecting plug at a second end (B) of the data connection cable , the second connecting plug being fitted to a second interface of an external electronic device assembled to the eyeglass body , a first connecting portion at the first end (A), the first connecting portion configured to secure the first connecting plug with the data connection cable ; a second connecting portion at the second end (B), the second connecting portion configured to secure the second connecting plug with the data connection cable ; and a data cable body between the first end (A) and the second end (B), wherein the second connecting portion is detachably connected to the first fastening portion ; characterized in that at least a part of the data cable body and the first connecting portion are receivable in a first groove of the virtual reality glasses , the second connecting portion comprises a second groove , the second groove is fitted to the protruding block , such that the second connecting portion is connected to the first fastening portion by means of the fitting between the protruding block and the second groove . <EOS>