Abstract: The present invention relates to a reflection cap for a lamp including: a body open on both ends thereof and having a reflection plate disposed on the upper portion thereof and a transparent plate disposed on the lower portion thereof; left and right end caps detachably fixed to both ends of the body and each having a boss protrudedly formed on the outer surface thereof, the boss having a through-hole formed thereon in such a manner as to fittingly insert the fluorescent lamp thereinto; and a fluorescent lamp fixing member rotatably coupled to the boss and adapted to hold and rotate a fluorescent lamp finishing portion clockwisely or counter-clockwisely so as to connect connection terminals of the fluorescent lamp fitted to the through-hole to connection terminals of a socket.