For the Moth-Flame Optimization(MFO)algorithm's slow convergence speed and easy falling into the partial optimization, a method of MFO algorithm based on Chaotic Crisscross operator(CCMFO)is proposed. The crisscross mechanism and chaotic operator are introduced for flame scratching. Search blind spots are reduced by vertical cricross.Dimension-crisscross and chaotic mapping enhance the ability of skipping the partial optimization. Flame information spreads rapidly like chain reaction by double-crisscross, a...