PURPOSE: To prevent the face of a driver from being blown by a high wind so as to improve frontward visibility, and prevent persons in front seats frown being blown by any uncomfortable wind.

CONSTITUTION: An awning 2 covering the upper side is provided on the cockpit 10 of a small-sized boat, a driver's seat 31 is arranged on the rear side of an operation handle 3 provided on a console 30, front seats 33 are provided on the front side of the console 30, and an instrument box 21 is downward projectingly formed on the part positioned on the upper side of the console 30 of the underside of the awning 2. A windscreen 5 made of transparent plate for shutting off the front face of a driver 60 is provided on the underside of the instrument box 21, and the wind screen 5 is inclined obliquely upper rearward and arranged so as to form a gap passing a wind between the instrument box 21 and the windscreen 5.