The invention relates to a semitransparent black reddish brown Vandyke smell cleaning type polyurethane woodenware paint and a preparation method thereof. The paint comprises a component A and a component B according to a weight ratio of 1:0.5; the component A is composed of smell cleaning type alkyd resin, extinction powder, a dispersant, a black reddish brown Vandyke color paste, a leveling agent, an antifoaming agent, an anti-settling agent and a solvent; and the component B is a non-benzene curing agent based on TDI and HDI trimer or adduct. The semitransparent black reddish brown Vandyke smell cleaning type polyurethane woodenware paint prepared in the invention does not contain aromatic hydrocarbons, aldehyde ketone or heavy metals, and can reach a smell cleaning effect 48h after a film is formed by coating the paint; the paint has the advantages of no settlement, good levelability, good handle, high scratch resistance and no ghosting in the storage process; and the paint can be coated on woodenware to realize clear and intensive wood grains and make furniture elegant, noble, natural and comfortable, adapts to modern aesthetics, is popular in the market and is loved by users. The paint can be widely used to realize surface decoration protection of woodenwares, metals and plastics.