The invention relates to a novel inhalation preparation, in particular to a preparation suitable for inhalation drug administration of children ranging from 0 to 12 years. After medicine difficult to be dissolved in water and auxiliary materials are mixed, a wet grinding method is adopted for smashing, mixed suspension liquid containing particles with the particle size appropriate is obtained, the particle size is 0.1-7 microns, and preferentially, the particle size is 0.1-5 microns; and further, the preferential particle size is 0.1-3 microns. Solid powder is obtained through a freeze-drying method. Sealing is performed for obtaining the novel inhalation; and before use, the novel inhalation preparation is mixed with liquid suitable for atomization, re-dispersion is performed, and the mixed suspension liquid capable of being used for atomizing inhalation of children is obtained. The preparation is stored and transported in the form of the solid powder, the problem that when a mixed suspension liquid form is adopted, the physical stability and the chemical stability are poor is avoided, the medicine particle size hardly changes, impurity increase is little, and the content hardly changes. Compared with inhalation powder aerosol, the novel inhalation preparation is especially suitable for atomizing medicine administration of children, medicine smaller in particle size can be adopted, and even though under the situations that breathing of an infant is slight and the effective portion deposition rate is low, an ideal medicine effect can also be achieved.