The invention discloses a soapberry enzyme laundry detergent. The soapberry enzyme laundry detergent comprises the following raw materials in parts by weight: 25-30 parts of soapberry, 15-25 parts ofsaponin, 15-25 parts of tea seed powder, 10-30 parts of brown sugar, 5-15 parts of pericarp and an appropriate amount of water. A preparation method of the soapberry enzyme laundry detergent comprisesthe following steps: cleaning and disinfecting pericarp; adding the cleaned and disinfected pericarp into a fermentation tank; adding water and brown sugar; performing uniform stirring; conducting fermentation for six months; filtering the fermented substance, adding soapberry, saponin, tea seed powder and brown sugar into the fermentation tank, performing uniform stirring, and performing fermentation for 3-12 months, wherein the fermentation tank is opened every day in the first one month of fermentation for stirring and degassing, after that, the fermentation tank is sealed and left to stand for natural fermentation, after fermentation, filtration is performed, and the filtrate is taken to obtain the soapberry enzyme laundry detergent. The soapberry enzyme laundry detergent not only caneffectively remove stains but also is safe and free from pollution.