The utility model relates to a suspension type warning sign subassembly that can install with electricity, it is including strip warning sign body, from the locker, frame and lifting arm lift, it just sets up one at the top of warning sign body at least to install from the locker, from the locker including a left side, two splint on the right side, the middle part of two splint is rotated through the pivot mechanism that has round pin axle and wind spring and is connected on the warning sign body, the lower part of splint is for pressing the splenium, upper portion is the arc clamping part, set up the logical groove that can supply another clamping part card to go into on one of them clamping part, the top rotation of leading to the groove is connected with the supporting pole, it follows the holding tank that suits with setting up including the bottom plate that transversely sets up to lift the frame on the bottom plate and with the base of warning sign body, the lifting arm is insulator spindle and fully adjustable, and its end connection is in the bottom of bottom plate. The utility model discloses an electrified installation of suspension type warning sign need not cut off the power supply and need not be used lift platform yet, and overall structure is simple, simple to operate and safe and reliable.