The molecular structure of the product contains short-chain polysiloxane hydrophobic group and polyether hydrophilic group which have excellent water-dispersing and surface activity. The product has such properties as emulsification, dispersion, being antistatic, foaming and smoothing, especially excellent wettability and flowability. It is widely used in cosmetic raw materials, inks and coatings, plastics additives, fabric step treating reagent, coating addictive and other fields. It is miscible with such solvents as methanol, isopropyl alcohol, acetone, xylene and dichloromethane etc, water solution is transparent to translucent.