The invention discloses a translation method. The main translation process is as follows: simplifying the content of the document to be translated; translating; restoring and backfilling; most importantly, performing secondary non-translated character removal processing (including removal of non-translated characters in a to-be-translated character set and removal of non-translated characters in amixed set after serial number replacement) and tertiary repeated content removal processing (including removal of repeated content in the to-be-translated character set); and removing repeated contents in the noun terms and repeated contents in the mixed set), so that the complex to-be-translated character set can be simplified to the maximum extent, namely, the contents in the to-be-translated character set can be simplified into the most basic language frame; comparing with a known database to obtain the short sentence translation very accurately; and finally, a very accurate translation can be obtained by adopting modes of reduction, backfilling and the like. According to the method, terms and sentence patterns can be unified on the premise that the context logic sequence of the translation is reserved as much as possible, and the purpose of improving translation accuracy is achieved.