An anti-obesity composition containing fresh red pepper(Capsicum annuum L.) extract as an active ingredient is provided to take the composition conveniently by removal of its pungent taste and effective in prevention and improvement of obesity. An anti-obesity composition contains 20 to 100% by weight of fresh red pepper extract, 20 to 80% by weight of a corn silk extract, 0.5 to 10% by weight of Pueraria root extract and 0.5 to 10% by weight of garlic extract. The fresh red pepper extract is obtained by the steps of: washing, dehydrating and squeezing fresh red pepper and precipitating for a specified time; filtering the precipitate with a filter with a size of 20 to 100mum to remove floating materials in a first step, an ultrafilter with a size of 0.01 to 0.1mum to remove fine floating materials and macromolecules in a second step and then an active carbon filter to remove off-taste and off-flavor in a final step. A health supplementary food contains 0.1 to 20% by weight of the anti-obesity composition and
