The invention discloses a dissolution acceleration type liquor circulation system for a liquid preparation tank, and mainly solves the problems that a conventional liquid preparation tank in the prior art can not meet the preparation of liquor in small amount, and liquor in part of the liquid preparation tank cannot be mixed unevenly. The system comprises a liquid preparation tank body (1), and is characterized in that the bottom end of the liquid preparation tank body (1) is communicated with a liquid outlet pipe (2), the liquid outlet pipe (2) is orderly connected with a liquor pump (3) and a filter (4), the liquid outlet of the filter (4) is communicated with a liquid return pipe (5), and the liquid outlet of the liquid return pipe (5) is communicated with the top of the liquid preparation tank body (1). The invention has the advantages of suitability for preparation of liquor in a small amount, quick dissolution and uniform mixing of the liquor.