A fish bite indicator in combination with a fishing rod and reel is provided to give an audible and/or a visual signal when the fishing line is under sufficient state of tension. An oscillating arm of the indicator extends below the rod. The fishing line is threaded in a loop at one end of the oscillating arm below the rod in such a way to cause the arm to move upward toward the rod when the line has sufficient tension to indicate a fish strike. The other end of the oscillating arm has a projection or projecting surface that activates an on/off switch electrically connected to a battery controlled printed circuit board including means for producing the audible and/or visual signal when the line is in sufficient tension to move the loop upward toward the rod.