A muscle electrostimulation device 1 is configured to apply electrostimulation to a muscle. The electrostimulation includes burst waves each including a pulse group output period P and any of pulse group output suspension periods R1 to R5 in an alternately repeated manner. In the pulse group output period P, rectangular wave pulse signals S1 to S5 are output, with output stop times N1 to N5 being inserted between the rectangular wave pulse signals S1 to S5. In the pulse group output suspension periods R1 to R5, output of pulse signals stops for a time longer than the output stop times N1 to N5. The repeated burst waves each include rectangular wave pulse signals S1, S3 and S5 having positive polarity, and rectangular wave pulse signals S2 and S4 having negative polarity.
