The invention discloses a Chinese medicinal composition for treating primary aldosteronism. The composition comprises self-heal, uncaria, antifebrile dichroa branchlet and leaf, eucommia, concha haliotidis, motherwort fruit, roots of uraria crinit, dutchmanspipe root, earthworm, manyprickle acanthopanax root, kudzuvine root, sophora japonica, scutellaria root, hawthorn, epimedium, evodia, harlequin glorybower leaf and twig, pinellia ternate, white peony root, radix ophiopogonis, dried radix rehmanniae, motherwort, petasites japonicas, sophora flavescens, habenariacilio, kelp, corydalis decumbentis and mesona chinensis. Multiple gouts of Chinese medicaments serving as raw materials are scientifically compatible and synergic, so that the composition has the effects of nourishing yin and blood, calming liver and removing blood stasis, reducing blood pressure and descending adverse qi, can effectively treat renal hypertension, is short in treatment course, quick in response and high in treatment rate, and is thus worthy of popularization.