The invention discloses a glass connection claw of an extra large hidden type glass curtain wall and a mounting structure of the glass connection claw, the glass connection claw is characterized by comprising a plurality of connection claws, horizontal steel tubes, longitudinal ropes and rear support steel frames, each connection claw comprises an upper clamp, a lower clamp, a connection part and a pull rod, the connection part connects the upper clamp and the lower clamp, the pull rod is embedded into a splicing seam of adjacent glass, a bearing connection part is embedded into a cross splicing seam of every two adjacent pieces of glass and in the middle of the pull rod, the bearing connection part is cross-shaped and comprises a bearing support piece and a sleeve, the bearing support piece is arranged horizontally, the sleeve is arranged longitudinally, and the pull rod is fixed in the sleeve; the connection claws are opposite to the long edges of the glass. According to the glass connection claw of the extra large hidden type glass curtain wall and the mounting structure of the glass connection claw, self weight between upper glass and lower glass can be transmitted by the matching of the pull rods and the bearing connection parts, the tress is more reasonable, the mounting of the extra large hidden type glass curtain wall is realized, and excellent transparency and safety are provided.