The utility model relates to a multifunctional automatic single-key windscreen wiper button which is composed of a digital control circuit 1, an intermittent movement control circuit for a windscreen wiper 2, a slow speed movement control circuit for a windscreen wiper 3, a rapid speed movement control circuit for a windscreen wiper 4, a time delay movement control circuit for washing an electrical machine 5, an electric source display circuit 6, an electronic switch 7, an overload protection circuit 8, an overload indicator circuit 9, a current detection circuit 10, an electronic switch locking circuit 11, and a normally-open button AN of vehicles when used. The utility model is connected with a washing electrical machine block, a windscreen wiper intermittent block, a slow speed block, and a rapid speed block. The utility model has the advantages that water spraying is done before water scraping, which protects the wind screen, the overload protection and display are provided, and has the advantages of no mechanical wear and long service life.