The invention discloses two kinds of methods for forming patterns by vacuum coating, one of which includes the following steps: (1) prepare a glass body; (2) pre-treat a part of an internal surface of the glass body where a pattern is to be formed thereon; (21) prepare a membrane with a hollowed-out pattern and adhere it on the glass body; (22) spray a wax layer evenly on the membrane and the surface of the glass body to cover the hollowed-out pattern; (23) remove the membrane; (3) perform vacuum coating to the glass body and form a coating layer on the surface of the glass body; (4) hollow out the pattern to be formed by removing the wax layer sprayed on the glass body by heating and thereby forming the pattern.