Method for preparing drill yamakaze syrup

The invention discloses a method for preparing drill yamakaze syrup. The drill yamakaze syrup is prepared from the medicinal materials of drill yamakaze, berchemia, herba chloranthy serrati, clematis root, Philippine flemingia root, millettia nitida Benth.var.hirsutissima Z.Wei, alpinia chinensis and the like. The preparation method comprises the following steps of: adding water to extract the medicinal material drill yamakaze for twice to three times for 1 to 3 hours each time, and combining extracts for later use; and adding 30 to 80 percent ethanol solution to reflux and extract the other six medicinal materials of berchemia and the like for twice to three times for 1 to 3 hours each time, combining the extracts, adding the combined extract into the extract of the drill yamakaze, concentrating the combined extract to form a thick paste, adding a proper amount of 30 to 70 percent ethanol solution for standing and filtration, adding proper amounts of auxiliary materials, adding the water to 1,000ml, and perf