The basic structure and application background of the bleed air anti-icing system of aircraft was introduced

and its development history and present development situation at home and abroad were reviewed. The main research contents were analyzed from four key points

including the calculation of anti-icing surface droplet impingement property

the modeling of external icing/runback water of skin

the study of the internal structure parameters of bleed air anti-ice system

and multiphase coupling simulation of anti-icing system. Finally

the development trend of bleed air anti-icing system was shown via the analysis of the accurate prediction of three-dimensional accreting process of runback ice

optimization method of internal structure parameters of bleed air anti-icing system

the determination of the anti-icing systems safety boundary and margin

the parameters scaled model icing-wind tunnel experiment of anti-icing system.Key words: bleed air anti-icing; icing/runback