The invention discloses a wind resistance type composite insulator and a mold thereof. On the basis of the structural parameter choice range of a +/-1100 kV wind resistance type composite insulator in a strong wind region, the optimal design is given, nine preferential umbrella type structures are given. The structural parameters and the umbrella type structures of the +/-1100 kV wind resistance type composite insulator in the strong wind region are optimized, a threshold value of the structural parameters is quantitatively regulated, the design and processing of related products can be well guided, the industrial gap is effectively filled, and the great application value and market prospect are achieved.