An LED driving module suitable to drive a plurality of LED strings in parallel connection is disclosed. The LED driving module includes a voltage converting apparatus, a conduction voltage detecting apparatus, a reference voltage generating apparatus and a current-adjusting apparatus. The voltage converting apparatus produces a driving voltage according to a conduction voltage. The conduction voltage detecting apparatus detects the conducting states of the LED strings for producing a conduction voltage and an enabling signal. The reference voltage generating apparatus generates a first reference voltage according to the enabling signal. The current-adjusting apparatus produces a plurality of driving currents according to the first reference voltage, and the driving currents flow through the LED strings.