The utility model provides a telescopic electric sign which is capable of being used at any time, fixed firmly and good in the warning effect. The telescopic electric sign comprises a hoop, a sign body and a sign element. The sign body comprises a sign frame connected with the hoop. The sign frame comprises a rectangular sign base board and a winding mechanism above the rectangular sign base board. The sign element comprises a piece of sign cloth and a front hook board and a rear hook board under the signing cloth. Sign words are written on the sign cloth which is wound in the winding mechanism when not used. According to the telescopic electric sign, the sign cloth is wound in the winding mechanism, during usage, an insulating bar or other hooking articles can be used for hooking the front hooking board to pull out the sign cloth downward, and the rear hook board is hooked on the base board, and the sign words are clear at a glance; the sign can be used for a long time after being mounted once; and the sign is fixed on a telegraph pole through the hoop, the stability is high, and accordingly, good publicity and safety warning effects are provided.