The invention provides a washing machine comprising a housing, an outer barrel and a water inlet system; the features are that the housing is provided with a clothing washing agent precoating structure including a clothing precoating slot and a washing agent precoating unit; the clothing precoating slot is respectively connected iwht the water inlet system and the outer barrel; the washing machine is provided with the clothing washing agent precoating structure, so users can precoat the clothing with convenience and high efficiency, thus improving washing effect, reducing washing agent usage amount, and reducing cost.