The present invention relates to an olanzapine oral instant membrane agent, a preparation method and pharmaceutical uses thereof. The membrane agent comprises the following components, by weight, 1-30% of olanzapine, 40-90% of a polymer membrane forming material, 0-40% of a plasticizer, 0-30% of a flavoring agent, and 0-5% of other auxiliary agents. The olanzapine oral instant membrane agent has the following characteristics that: no water is required during administration, the olanzapine oral instant membrane agent can rapidly melt in mouth, phenomena of drug hiding in mouth and drug spitting of schizophrenia patients can be avoided, and patient medication compliance is easily improved. With the preparation method, the main drug of the olanzapine oral instant membrane agent has characteristics of good dispersing effect in a hydrophilic matrix glue liquid, good finished product appearance, rapid dissolution and good stability. In addition, characteristics of accurate product dose and no dust flying during a production process are provided, and problems of labor protection and environmental pollution can be solved.
