The invention relates to preparation method and application of berberine fatty group organic acid salt, pertaining to pharmacy field. The chemical general formula of barberine type alkaline of the invention is shown as a formula (I), wherein, X represents organic acid group, and the berberine type alkaline is berberin, palmatine, jaterohitine or coptisine. The invention relates berberine alkaline fatty group organic acid, which is of good oral taking absorption, can be used for preparing medical components, greatly improves the bio-availability of the alkaline type, and play comparatively better effect to the therapies of such diseases as bacterial infection, heart rate abnormity, platelet aggregation, hyperlipidemia, diabetes, hypertension, cardiac failure, etc.