The present invention relates to a manufacturing method of a fermented lactic acid bacteria beverage using extracts of dates and deer antlers, which is allowed to ferment extracts of dates and deer antlers with use of lactic acid bacteria, thereby having a good anti-oxidant effect and good preference, including the steps of (A) pouring water 5 or 10 times than deer antlers, adding 1-7% of dates for weight to water and extracting the same between 90 and 110 degrees Celsius for 9 to 11 hours; and (B) inoculating lactic acid bacteria to the same through the (A) step and fermenting the same between 35 and 37 degrees Celsius for 20 to 25 hours.
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