A blade mounting structure of a bulldozer capable of increasing visibility of
a
blade is provided. For this purpose, in the blade mounting structure in which a
left and a right portions of a blade (1) and a vehicle main body are connected
with a set of left and right straight frames (3, 3) to be swingable up and
down and to a left and a right, and the straight frames and the blade are respectively
connected by a hydraulic cylinder (4) for tilt drive and a support member
(4a) to be swingable up and down and to the left and the right to
be constituted to be capable of tilt drive, the blade mounting structure includes
an arm (2) for connecting only any one of the straight frames and a substantially
central portion of the blade to be swingable up and down and to the left and the right.