The invention provides an industrial enveloping method and an industrial enveloping system of titanium dioxide. The industrial enveloping method comprises the following steps: preparing a high-concentration low-alkalinity sodium metaaluminate solution, wherein the rate of nNa2O to nAl2O3 is 1.25-1.3 and the concentration of the solution (calculated as Al2O3) is 300-350/L; diluting the high-concentration low-alkalinity sodium metaaluminate solution in a pipeline until the concentration of the solution (calculated as Al2O3) reaches 95-105/L; and conveying the solution to an enveloping process. The enveloping system comprises a sodium metaaluminate solution storage tank and an enveloping reaction kettle which are connected with each other through a pipeline, wherein the sodium metaaluminate solution storage tank is used for storing the high-concentration low-alkalinity sodium metaaluminate solution, the enveloping reaction kettle is filled with titanium dioxide paste, and a diluent inlet is formed in the pipeline. According to the method and the system, the engineering application of low-alkalinity sodium metaaluminate to titanium dioxide enveloping is achieved, and the performance indexes of enveloped products are superior to those of the existing commercial sodium metaaluminate enveloped products.