The invention provides a new method for treating waste water containing high concentration of organosilicon. The method comprises: solidifying the waste water containing high concentration of organosilicon; conditioning sludge characteristic to increasing the press filtering water penetration of the sludge, and performing solid-liquid separation; adding flocculating agent into the filtrate to remove the residual salts in the waste water; performing sludge-water separation to the flocculated filtrate, and pumping the obtained supernatant into a condenser to cause the volatile pollutants and waste water to separate from the waste water in gas mode; removing all the salts in the waste water to improve the biodegradability of the waste water, and create conditions for the subsequent low concentration waste water treatment. The invention provides a high efficient, energy saving technical approach with low cost to the treatment of waste water containing high concentration of organosilicon; can recover useful resources such as salts; has great application prospect.