A streaming-based reward providing server includes: a destination location coordinate value inputter configured to receive a destination location coordinate value according to a user's input; a confirmation radius setter configured to set an arrival confirmation radius having a radius of a threshold value preset based on the destination location coordinate value; a reward amount inputter configured to receive a reward amount according to the user's input; a location coordinate value collector configured to collect a streamer location coordinate value from a terminal performing streaming broadcast; a trigger signal generator configured to generate a trigger signal; a reward acquisition signal generator configured to generate a reward acquisition signal; a participation rate calculation module configured to calculate a viewer participation rate for each viewer; and a reward calculator configured to calculate and output a viewer reward value for each viewer.