Fuente: WIPO "sustainability" The invention provides a sleep sustainability detection and adjustment method based on modal decomposition, which comprises the following steps: acquiring key physiological information of a user, and acquiring and processing sleep physiological signals of the user according to a sleep sustainability dynamic detection and adjustment basic scheme to obtain a sleep state characteristic curve and a sleep time phase curve; performing de-noising processing and modal decomposition on the sleep state characteristic curve, extracting a high-frequency modal decomposition signal according to a high-frequency threshold value of the characteristic curve to obtain a sleep sustainability characteristic signal, and calculating a sleep sustainability index and a curve; performing trend prediction analysis on the sleep sustainability, generating a dynamic adjustment strategy of the sleep sustainability, and performing dynamic adjustment and effect evaluation; and establishing or updating a user personalized sleep sustainability database, dynamically iteratively optimizing a dynamic detection and adjustment process method strategy of sleep sustainability, and generating a user sleep sustainability detection and adjustment report. According to the invention, sustainable efficient intervention and adjustment on sleep of the user can be realized.