The invention discloses a method for increasing the content of tanshinone type ingredients in hairy roots of Tibetan radix salviae miltiorrhizae. The method comprises the following steps of (1) performing primary culture on the hairy roots of the Tibetan radix salviae miltiorrhizae in 6,7-V liquid culture mediums, wherein the culture time is 17-19 days; (2) dissolving 1g of lactoalbumin hydrolysate in 8-12mL of sterile water, and performing filtration and sterilization with a sterile filter head of 0.22[mu]m so as to obtain a sterile lactoalbumin hydrolysate solution; and (3) continuing culturing the hairy roots of the Tibetan radix salviae miltiorrhizae: adding the sterile lactoalbumin hydrolysate solution obtained in the step (2) into cultured substances obtained in the step (1) until the final concentration of the lactoalbumin hydrolysate is 0.9-1.1g/L, and performing induced culture at 100-150rpm, at the temperature of 24-26 DEG C and under dark condition for 5-7 days. According to the method disclosed by the invention, the hairy roots of the Tibetan radix salviae miltiorrhizae are treated through the lactoalbumin hydrolysate, so that the accumulation of secondary metabolism products namely tanshinone is promoted.