The split infinitive in English has been under debate for more than a century. A number of reasons are provided for its prohibition as the split construction is often regarded as erroneous, non-standard, or deviant from the traditional prescriptive norm of English grammar. Nonetheless, evidence from language corpora demonstrate that many native English speakers themselves have widely used it these days, not considering the structure as such grammatically incorrect. It is clearly seen that the split infinitive often enables English users to enormously appeal to readers’ attention, so does it help promote clarity of messages. As regards pedagogical aspects, it may be useful if the split infinitive is included in EFL grammar lessons on the condition that it is introduced through authentic materials after the normal, unmarked structure of infinitive has been introduced.