The invention provides a bourrache officinale deep processing method and a deep processing product thereof. The method comprises the steps that bourrache officinale is acquired, and sample drying processing is performed to obtain a dry sample; the dry sample is extracted and separated into bourrache officinale aromatic oil and residues through a supercritical carbon dioxide extraction method for the preset extraction time under the preset extraction pressure at the preset temperature; polyphenol is extracted from the residues and the dry sample through an ethanol solution with the preset concentration by means of a continuous refluxing extraction method. According to the processing technology process, separation of active substances is achieved, and the bourrache officinale utilization efficiency can be effectively improved; deep processing can be performed on the overground parts obtained after seed collecting, and therefore the method is beneficial for resource utilization; the active ingredients obtained through extraction have the very good biological activity, the value of the bourrache officinale can be further improved, and the wide application prospect is achieved.