An organic light-emitting diode (OLED) drive power device and OLED television, the OLED drive power device comprising a power board (10) connected to a motherboard (20) and an OLED screen logic board (30), the power board (10) being provided thereon with a power supply circuit (11), a first conversion module (12), a second conversion module (13), a changeover switch (14) and a power factor correction (PFC) circuit (15); after power is connected, the power supply circuit (11) starts the PFC circuit (15) to output a high-voltage direct current according to an on-off signal output by the motherboard (20), the first conversion module (12) converts the high-voltage direct current into a first voltage and a second voltage to power the motherboard (20), and the changeover switch (14) converts the first voltage into a first enable voltage to power the OLED screen logic board (30); after a preset period of time, the second conversion module (13) converts the high-voltage direct current into a second enable voltage to power the OLED screen logic board (30) so as to light an OLED screen. Redesigning the architecture of the power board (10) eliminates a need for a standby circuit and streamlines circuits, which not only meets the power output stability and timing requirements of an OLED, but also successfully reduces the size of the power board (10), thereby reducing cost of power and benefiting the popularization of the OLED.