PURPOSE: To block the entrance of rain water, dust and wind into a passenger's compartment and as well to enhance the workability, by extending the upper end of a sealing screen so that it is secured to an inside seal member attached along the top end flange of an inner panel.

CONSTITUTION: An inside seal member 13 is attached along the top end flange 11 of an inner panel 5 to which a sealing screen 21 and a finisher 23 as a door trim are attached, and the top end 23a of the finisher 23 is fitted in an U-like groove 17 in a finisher clamping section 21. The top end 23 of the sealing screen 21 is extended and is secured to the flange-like clamping section 15 of the inside seal member 13. With this arrangement an access hole 3 and the top end flange 11 are sealed by the screen 21 so that the door inside M and the passenger's compartment are isolated from each other.