A muscle electrostimulation device is configured to apply electrostimulation to a muscle. The electrostimulation includes burst waves each including a pulse group output period and any of pulse group output suspension periods in an alternately repeated manner. In the pulse group output period, rectangular wave pulse signals are output, with output stop times being inserted between the rectangular wave pulse signals. In the pulse group output suspension periods, output of pulse signals stops for a time longer than the output stop times. The repeated burst waves each include rectangular wave pulse signals having positive polarity, and rectangular wave pulse signals having negative polarity.
