Leaf of leaf-hidden window

The utility model discloses a leaf of a leaf-hidden window. The leaf comprises a leaf frame and glass, the leaf frame is composed or four window leaf sectional materials same in shape of cross sections, glass bonding bars are inserted in the outer stand face of the leaf frame and connected with separation blocks, the inner surface of the glass is in contact with the separation blocks, and therefore glue injection seams are formed between the glass and the glass bonding bars. Glue layers are injected to the glue injection seams and used for fixedly and integrally connecting the glass, the separation blocks, the glass bonding bars and the leaf frame. Glue seam decoration bars are inserted to the leaf frame, make contact with the inner surface of the glass, and are used for sealing the glue layers in a covering mode. Heat insulation bars are inserted to the leaf frame, and glass seam decoration bars are inserted to the heat insulation bars, make contact with the outer surface of the glass and are used for sealin