The invention discloses an ointment for treating gynaopathy and dermatoses and a preparation method thereof. The externally-applied ointment is prepared from halcinonide preparation, menthol crystal and camphor which are utilized as raw materials according to a certain preparation technology, and is prepared from the following raw materials in parts by weight: 6 to 6.5 parts of halcinonide preparation, 15 to 20 parts of menthol crystal, 15 to 20 parts of camphor, 3 to 3.5 parts of edetate disodium, 20 to 40 parts of polyethylene glycol mono stearate, 0 to 3 parts of essence, 0 to 2 parts of carbomer, 0 to 2 parts of sodium bicarbonate and 15 to 25 parts of pure water. The externally-applied ointment is low in cost, has the effects of clearing away heat, eliminating dampness, dispelling the wind, killing worms, diminishing inflammation and relieving itching, has better treatment effects, has the characteristics of being easy to prepare, lower in cost and obvious in treatment effect, and can be used for treating the gynaopathy, such as vaginitis, cervicitis and cervical erosion, caused by various germs, and treating the dermatoses, such as tinea corporis, tinea cruris, tinea of feetand hands and various dermatitis, caused by various fungus infection. The externally-applied ointment has exact treatment effects, takes effect rapidly, is low in cost and convenient to use, and has no toxic and side effects, thus being worthy of popularization and application.