Provided is a technical spillover effect analysis method. The technical spillover effect analysis method according to an embodiment of the present invention includes: obtaining technical co-classification information from a patent concurrently technically classified into two or more technical categories from patent data formed of a plurality of patents classified into preset technical categories; calculating the degree of the relationship between the technical categories from the technical co-classification information; and deriving a technical spillover effect for the technology classification using the degree of the relationship between the technical categories.
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