The invention discloses a fine rice wine foam stability detection method, which is characterized in that: a sampling container utilized in the method can be sealed and is provided with a sealing cover opening, wherein a container body is provided with an inlet valve and an outlet valve; and the method is used for simulating equal-pressure bottling in bottling production to perform sealed sampling and foam stability detection on fine rice wine with the container through the following steps: after filling water into the container and closing a sealing cover, the inlet valve and the outlet valve; communicating the inlet valve of the container with the outlet valve of a CO2 gas holder tank to introduce a CO2 gas into the container and completely evacuating the water in the container; communicating the inlet valve of the container with a sampling vale of a fine rice wine tank, slowly opening an exhaust valve of the container to stably introduce the fine rice wine into the container at the same time of slowly releasing the CO2 gas in the container, bottling the fine rice wine until the fine rice wine appears at the outlet valve of the container, and then orderly closing the exhaust valve and the inlet valve of the container; and placing the container in a thermostatic water bath of 20 DEG C for standing for 30 minutes and opening the sealing cover to perform the foam stability detection with an apparatus.