The invention discloses a display driving circuit, a method for controlling the same and a liquid crystal display. The display driving circuit comprises a temperature detection circuit, a time sequence control circuit and a pulse width modulation circuit. The temperature detection circuit is used for detecting current working environment temperatures of a display panel and outputting corresponding electric signals; the time sequence control circuit is used for acquiring the electric signals, outputting first voltage values corresponding to the electric signals and outputting second voltage values after preset time; the pulse width modulation circuit is connected with the time sequence control circuit and is used for outputting first driving voltages according to the first voltage values and outputting second driving voltages according to the second voltage values after preset time; voltage values of the first driving voltages are higher than voltage values of the second driving voltages. The display driving circuit, the method and the liquid crystal display have the advantages that the display panel can be driven to normally work in different temperature environments, and anomaly of work of the display panel can be prevented.