To provide a brush for a rotary type washing machine of high washing power.

A large number of brush fibers 9 obtained by forming brass wires of a 0.15 mm diameter to have a waveform of 5.5 mm pitches are bundled in high density to make a group 7 of brushes, and a plurality of groups 7 of the brushes are implanted into a rotary base 8 to form a brush part. Three hundred and twenty groups 7, 7, ... of the brushes are implanted in total on the rotary base 8 by five columns in a radial direction and 64 groups on a coaxial circumference, and the projecting amount of each group 7 of brushes from the rotary base 8 is 50 mm. When implanting the groups 7, 7, ... of the brushes, five groups 7, 7, ... of the brushes making a line in the radial direction of the rotary base 8 as one set are sewn with a hand sewing wire 17 made of stainless steel.