A touch electrode drive circuit (100), a touch electrode driver (200), and a touch display device (300). The touch electrode drive circuit (100) comprises an input terminal (IN), a reset terminal (RST), first voltage terminals (CNs), second voltage terminals (CNBs), third voltage terminals (VGHs), fourth voltage terminals (VGLs), common voltage signal terminals (VCOMs), a first common voltage signal control terminal (VCOM_EN1), a second common voltage signal control terminal (VCOM_EN2), a first clock signal terminal (CK1), a second clock signal terminal (CK2), a third clock signal terminal (CK3), a fourth clock signal terminal (CK4), touch signal terminals (TXs), touch control signal terminals (TX_ENs), a first output terminal (OUT1), a second output terminal (OUT2) and a third output terminal (OUT3), which are operable such that the same touch electrode drive circuit (100) may output a touch scan signal to two touch electrodes.
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