The invention discloses a new crystal form A of 11-alpha-chloro-6-methyne oxytetracycline p-toluene sulfonate. The new crystal form A has the advantages that the caking problem of solid in existing crystal forms is solved, the solid and mother liquor can be separated through a common spin-filtration centrifuge, and the obtained solid is loose and can be easily dried and directly used in next-stepreaction; doxycycline can be simply prepared by preparing the new crystal form, and the new crystal form is suitable for the large-scale industrial production of the doxycycline and promising in application prospect.