The invention relates to a device for preventing construction under a drunk state. The device comprises a base, a top plate, a processor, an interception mechanism, a detection mechanism and two vertical plates; the interception mechanism comprises two interception assemblies, and each interception
assembly comprises a translation unit and two interception plates; and the detection mechanism comprises a drive chamber, a driving
assembly and two detection assemblies, the detection
assembly comprises a detection plate, a camera, a display screen and two sliding units, and one detection assemblyof the two detection assemblies is further provided with an
alcohol testing unit. According to the device for preventing construction under the drunk state, the detection mechanism can carry out identity
verification, drunk test on personnel between the two vertical plates and judge whether
alcohol items are carried or not, the interception mechanism is matched and operated, so that operators withlegal identity carrying no
alcohol items and not drunk can conveniently make contact with construction machinery for safe construction, and other personnel are intercepted and are avoided from makingcontact with the construction machinery, then the safe construction of a construction site is ensured, and the practicability of the device is improved.