The present invention provides a putter head which includes a putter head
body which has a portion thereof connected to a distal end of a putter
shaft; a laterally extending putter face which is formed on a front
portion of the putter head body; a strip-like longitudinal line mark
which is capable of being aligned with an imaginary ball hitting line at
an address position, the longitudinal line mark being formed on an upper
surface of the putter head body and extending rearwardly from a center of
the putter face in the direction orthogonal to the putter face; and
blurring marks which are formed on the upper surface of the putter head
body in a state that the blurring marks sandwich the longitudinal line
mark, the blurring marks having profile lines which are arranged
substantially symmetrically and non-parallel with respect to the
longitudinal line mark, wherein the profile of one blurring mark is
arranged approximately parallel to the imaginary ball hitting line at a
take-back position and the profile line of another blurring mark is
arranged approximately parallel to the imaginary ball hitting line at a
follow-through position.