The invention relates to a method for making instant stachys affinis. The method specifically comprises the following steps: washing harvested stachys affinis, putting into a color-fixing preservative which is prepared from deionized water, erythorbic acid and citric acid, soaking, drying at 45-65 DEG C till the water content is 50-65%, coating by using a coating agent prepared from water, xanthan gum and sodium carboxymethylcellulose, freezing for 8-12 hours at minus 5 DEG C to minus 3 DEG C, frying in oil, centrifuging till the oil content is 4-7%, and packaging. The color-fixing preservative is free of any component which can do harm to human bodies; due to adoption of a drying and coating technique, the functions of dewatering, color fixing and puffing are achieved; due to freezing, the function of shaping is achieved; the crispness of stachys affinis is maintained by controlling the oil temperature; by adopting the method, unique crispness and color of stachys affinis are maintained to the maximum extent, the processed instant stachys affinis is good in taste, good in color, good in shape, convenient to carry over and easy to preserve, the preservation period can be 9-12 month at normal temperature, and the requirements of people on instant stachys affinis are met.