Large-span ultrahigh space steel structure building metal net suspended ceiling and using method thereof

The invention relates to the field of metal suspended ceilings, in particular to a large-span ultrahigh space steel structure building metal net suspended ceiling and a using method thereof. The invention provides a large-span ultrahigh space steel structure building metal net suspended ceiling which comprises a suspended ceiling frame, a plurality of mounting notches are formed in the suspended ceiling frame, the mounting notches are suitable for mounting metal net assemblies, and each metal net assembly comprises a plurality of metal net units arranged in a split mode. Positioning mechanisms are arranged on the two inner side walls of the mounting notch correspondingly, and a plurality of adjusting mechanisms are further arranged in the suspended ceiling frame. A conventional metal net is arranged in a split mode, the metal net assembly is formed by a plurality of metal net units, the diameter of a metal wire on each metal net unit is increased so that the overall rigidity of the metal net assembly can be i