The invention includes probe, elastomer of tangential force cantilever, ball, pretension bolt, elastomer of forward force cantilever and bonded resistance strain gauge. Connected relation is as following: probe passing through elastomer of tangential force cantilever contacts to ball, which touches forward force cantilever; ball and pretension bolt are fixed on elastomer of forward force cantilever correspondingly; elastomer of tangential force cantilever through probe, and pretension bolt are fixed on mould correspondingly; elastomer of forward force cantilever through screw is fixed on mould; bonded resistance strain gauge is pasted on both of the said elastomers. The invention is capable of measuring frictional coefficient in forming procedure of drawing sheet material in high efficiency, and provides features of small size and multipoints measurement.