The invention relates to a new radix salviae milliorrhizae extract and preparation thereof. The preparation method of the radix salviae milliorrhizae extract disclosed by the invention comprises the following steps: (1) extracting a radix salviae milliorrhizae medicinal material by using lower alcohol, filtering the obtained product so as to obtain alcohol extracting liquid, and taking herb residues A for standby application; (2) adding water into the herb residues A to extract, filtering the obtained product so as to obtain water extracting liquid, and removing herb residues B; (3) respectively cooling and standing the alcohol extracting liquid and the water extracting liquid, and respectively sucking supernatants as an alcohol extracting supernatant and a water extracting supernatant; (4) concentrating the water extracting supernatant so as to obtain a water extracting concentrated solution; (5) gradually adding the water extracting concentrated solution into the alcohol extracting supernatant, and concentrating the obtained mixture, so that a mixed concentrated solution is obtained; and (6) adding purified water into the mixed concentrated solution, concentrating the obtained mixture until a certain concentration proportion is achieved, and collecting paste, so that the radix salviae milliorrhizae extract is obtained.