Current-mode slgnal processmg ClrcU1t technology IS one of important progresslve fields in analogue VLSI technologies m recent years , and it is also an mternatlOnal frontler subject. The generation and development of the current-mode technology has led to an exciting challenge to the traditional voltagemode counterpart. This paper reVlews some advances on the current-mode slgnal processmg techniques. Comments for further research efforts and application prospects of the field are presented.