The invention discloses a shrimp meat preserving composite film-formation solution in order to solve the problem of poor preservation effect of a shrimp meat preserving film-formation solution in the prior art. The composite film-formation solution is prepared from the following components in percentage by mass: 2%-3% of chitosan, 1%-1.5% of acetic acid, 0.5%-1% of sodium caseinate, 5%-10% of sorbitol, 0.5%-1% of phytic acid, 0.3%-0.5% of trehalose, 0.3%-0.5% of calcium chloride, 0.1%-0.3% of carrageenan, 8%-10% of propolis water extract, 20%-30% of gingerade and the balance of garlic water. The composite film-formation solution is simple and reasonable in formula, excellent in preserving and water-retention performance, and capable of prolonging the preservation time of shrimp meat. The invention also discloses a preparation method of the shrimp meat preserving composite film-formation solution. The preparation method comprises the following steps: weighing all the raw materials in a ratio; evenly mixing acetic acid, propolis water extract, gingerade and garlic water; adding chitosan, sodium caseinate, sorbitol, phytic acid, trehalose and calcium chloride; and finally adding carrageenan to obtain a mixture, evenly mixing the mixture, and standing for 10-15 minutes under vacuum condition. The preparation method has simple technological steps, high operability and low implementation cost.