This
digital textile printing system for knit fabric comprises: a transport device including a transport belt that receives knit fabric at a supply position and transports the received knit fabric along a transport path while supporting the received knit fabric on an upper surface; a Webster guide that receives the knit fabric from the outside, spreads the received knit fabric, and supplies the knit fabric to the transport belt; and a press roller that is disposed at the supply position and guides the knit fabric supplied from the Webster guide to the upper surface of the transport belt. The Webster guide includes: an unwinder unit that spreads the knit fabric received from the outside; a fabric supply unit that supplies the knit fabric spread by the unwinder unit to the transport belt; and a
control unit that controls operation of the fabric supply unit. The Webster guide may supply the knit fabric to the supply position from a position higher than the press roller.