The invention provides a method for rapidly analyzing an ion adsorption type rare earth element. The method comprises the following steps: firstly, immersing an ore sample with 2.5wt% ammonium sulfate for more than or equal to 2 hours; after diluting to certain volume, taking out 100mL of supernatant liquid; secondly, evaporating the solution on a heating plate to be about 20mL, and adding four drops of thymol blue indicator respectively; adding 10wt% NH4OH solution drop by drop and neutralizing to orange color; thirdly, adding 10mL of a saturated oxalic acid solution and precipitating the rare earth element by using oxalic acid; further adding NH4OH solution and neutralizing until the pH (Potential of Hydrogen) value is about 2-3; finally, diluting the solution to be about 100mL and heating the solution to be nearly boiled; preserving the heat for 1h, cooling and then adding 0.1mL of a triton dispersant; diluting tothe volume of200mL for detection; and taking 50mL of the solution and filtering to form a film. According to the method provided by the invention, dissolution can be performed outdoors and the rare earth element is enriched with the thin film; an XRF (X Ray Fluorescence) test is adopted and the element is quantitative; and the method has the advantage of convenience for movement.