The invention relates to a series of tannin extract raw materials prepared by ultrafine pulverization and its combination and coupled preparation process and method for a series of tannin extract products. That is to say, the superfine powder materials of oak bowl shell, larch, casuarina, oil orange, black wattle, bayberry, red root, live oak, and acacia bark are subjected to double dynamic extraction or flat transformation Continuous leaching, spiral sedimentation centrifugal separation (horizontal spiral unloading centrifugal separation), foam separation, sedimentation separation, plate and frame filter press, etc. combination, coupling process and equipment processing, correspondingly solve the filtration in the production and processing process of tannin extract raw materials , sol, fine fiber particles, insoluble matter and non-tannin high-level problems, prepared industrial-grade rubber extracts, larch extracts, casuarina extracts, oil orange extracts, and black wattle extracts that meet industry standards , bayberry extract, red root extract, oak tree extract, and acacia extract.