The acceptance of microwave digestion technique is based on procedures successfully carried out for mist different kinds of samples. The goals of this paper are to gather all information concerning applications of microwave digestion methods to analytical chemistry. Some applications of microwave techniques to sample digestion, solvent extraction, sample drying, the measurements of moisture, analyte desorption and adsorption, sample clean up, chromomeric reaction, speciation, and nebulization of analytical samples are presented.