A method for preparing smokeless tobacco additives by a mixing method is characterized by adding ethanol at the concentration of 50-95% and with amount being 3-6 times that of a mixture of tea, cocoa powder, coffee powder and tobacco leaves to the mixture, carrying out reflux and extraction for 3-5 times, one hour every time, carrying out filtering and concentrating the filtrate, thus obtaining the smokeless tobacco additives. When the additives of the invention are added to the smokeless tobacco products, the types of the smokeless tobacco products can be richer, the taste can be more pleasant and the people smoking the smokeless products can have satisfaction equal to that after smoking cigarettes. The method can not only meet the needs of the tobacco consumers but also reduce the harm of smoking to health, but more importantly, the method can avoid the harm of smoking to the environment, lower the possibility that the non-smokers suffer passive smoking and ensure smoking to be harmless to the environment.