The invention discloses a low emission combustion chamber adopting blade leading edge axial injection. The low emission combustion chamber adopts a single annular cavity structure and mainly structurally comprises a diffuser, a combustion chamber case, a flame tube and a combustion chamber head; combustion air all enters the flame tube from the combustion chamber head and is divided into a precombustion stage and a primary combustion stage with adoption of a center staged combustion scheme; the primary combustion stage adopts a premixed combustion mode, and the precombustion stage mainly depends on a non-premixed combustion mode and adopts an axial or radial hydrocyclone; the primary combustion stage adopts an axial blade type hydrocyclone, a radial oil passing hole is formed in the primary combustion stage blade, and an oil nozzle is formed in an appointed position of a blade leading edge; and fuel oil is ejected from the oil nozzle in the axial direction, is fully mixed with an air flow in a primary combustion stage channel and then enters the flame tube to participate in combustion. According to the low emission combustion chamber, as the primary combustion stage adopts blade leading edge axial injection mode oil supply, radial distribution uniformity of the fuel oil in the primary combustion stage channel is improved, the influence of working condition variation of an engine on fuel oil mixing is weakened, and the nitrogen oxide emission of the combustion chamber can be remarkably lowered.