PURPOSE: To provide an open show case in which cold air is fed into a goods storing chamber in such a manner that the cold air does not directly strike against fluorescent lamps fixed to a top plate and luminous degree can be increased.

CONSTITUTION: A part of cold air (a) flowing in a cold air duct 3 is blown from a blowing port 16 arranged at a top part 4A of a goods storing chamber 4 in such a manner that the cold air does not strike against fluorescent lamps 10 arranged at a front end of the top plate 4A of the goods storing chamber 4.