Automatic audible and visual alarm safety warning sign

The utility model relates to an automatic audible and visual alarm safety warning sign, in particular to a pyroelectric infrared automatic audible and visual alarm safety warning sign. The circuit consists of a pyroelectric infrared sensor switch circuit, a lamp bulb, a language integrated circuit and a speaker; the pyroelectric infrared sensor switch circuit is connected with the input end of a power supply; the warning sign is characterized in that the output end of the pyroelectric infrared sensor switch circuit is connected with the lamp bulb and the power input end of the language integrated circuit; and the output end of the language integrated circuit is connected with the speaker. With the adoption of the technical scheme, the automatic audible and visual alarm safety warning sign has the advantage and positive effect of conducting audible and visual alarm automatically no matter whether a person is approaching in day or night, thus being economical, practical, safe and reliable.