Abstract: An alcohol-based suspending drag reducer was studied and developed. Based on the theory of solubility parameter, a suitable suspending medium was selected from alcohols and alcohol ethers by simulation software and real measurements. The kinds of density regulator, emulsifier and thickener were determined based on the examination of factors affecting storage stability and heat resistance of the suspending drag reducer. It is suggested that pentanol, 2-methoxyethanol, span80, tween60, EBS and coating agent for polymer particles are the main components of the drag reducer suspension. The apparent viscosity, high/low temperature resistance and drug reduction rate of the suspension prepared were then evaluated. It is found that the polymer particle size and polymer content in suspending drag reducer are the main factors which affect the apparent viscosity of the suspension. The drug reduction rate increases with increasing dosage of the drag reducer suspension, and then tends to flatten when drug reduction rate reaches to the maximum.