The embodiments of the present disclosure provide an emission controller, a control method thereof and a display device, capable of preventing luminance of sub-pixels from deviating from its standard value and improving display quality. The emission controller includes a plurality of emission control circuits each including: a first processing module configured to receive a first voltage signal, provide a first signal to a first node and a second signal to a second node; a second processing module configured to provide a third signal to a third node; a third processing module configured to receive a second voltage signal and provide a fourth signal to the first and third nodes; a fourth processing module configured to pull down signal at the first node; and a gating module configured to receive the first voltage signal and the second voltage signal and provide an emission control signal to the emission control signal terminal.