The present invention belongs to the field of pharmaceutical technology, and crystal forms of a 9-aminomethyl substituted tetracycline compound and a process for preparing the same. More specifically, the present invention relates to crystal forms of the compound represented by formula (1), a process for preparing crystal forms of the compound represented by formula (1) and use of said crystal forms in manufacture of medicament for treating and/or preventing an infection disease caused by tetracycline-sensitive bacteria and/or tetracycline-resistant bacteria.
