To provide a dew condensate drop prevention construction for ceiling in a bathroom by definitely letting dew condensate generated at the joints of divided ceiling members flow into a wall surface side in a bathroom thereby preventing the dropping of the condensate directly to the head of a person taking bath and also improving the design value of the ceiling.

For this dew condensate drop prevention construction for a divided type bathroom ceiling 3 where the dew drop is created at the ceiling joints, a bathroom ceiling 3 is formed at least from two ceiling members 8, 9 and a level difference H1 of a predetermined height is made at a joint between the ceiling members 8, 9, and a gutter member 12 having a wash for flowing the dew condensate created at the joint 10 to the wall surface side in the bathroom is arranged at the end portion of the ceiling member 9 located underneath the joint 10. The bottom surface of the gutter member 12 is set flush with the bottom surface of the ceiling member 9 located below the jointing portion 10 and is projected out by a predetermined length almost in parallel to the direction of the ceiling member 8 located above, and also the ceiling members 8, 9 can be formed in an arch shape or a flat panel shape.