The invention relates to the technical field of Tibet lamb skin clean production, in particular to an improved Tibet lamb skin clean production technology which comprises the following steps: (1) pretreatment; (2) tissue fixation; (3) tanning treatment; (4) bleaching treatment; (5)dying treatment; and (6) liquid waste treatment. According to the improved Tibet lamb skin clean production technology, the tanning working procedure and the liquid waste treatment working procedure can effectively ensure the production quality of the Tibet lamb skin and the utilizing efficiency of chromium; the tanning extract and chromium react to form chromate flavone type polymer precipitate to facilitate chromate filtration and cleaning to production liquid waste and recycling of the liquid waste, so that the cleaning efficiency and the recycling efficiency of the liquid waste are improved to realize a better cleaning environmental protection effect, resource waste is reduced, and higher popularization and application value is realized.