The invention provides an LED lighting fixture capable of adjusting light distribution very conveniently. The LED lighting fixture of the invention includes LED light sources and radiator, the radiator is provided with mounting surface arrays and the LED light sources are mounted on the mounting surface arrays. The LED light sources are mounted on the mounting surface arrays, thus realizing secondary distribution of the LED light source and being capable of adjusting light distribution very conveniently as required; separate design of the radiator and the support frame facilitates realization of diversified appearances; and integrated heat radiation design fulfills heat radiation requirements. The LED lighting fixture can be a good substitute for the conventional lighting fixtures, has the advantages of being environment-friendly, efficient, energy-saving, safe and reliable, and can be widely applied to highways, urban roads, industrial parks, schools, squares, tunnels, etc.