The invention provides a mask and evaporation equipment. The mask comprises a main body and hollowed-out parts, and further comprises at least one extension part, wherein the hollowed-out parts are arranged on the main body; the extension part is coplanar with the main body, is connected with at least one side of the main body, and extends along the first direction; at least part of the extensionpart corresponds to the hollowed-out parts; and the direction perpendicular to the stretching direction of the mask serves as the first direction. During the use of the mask, the mask can retract anddeform along the first direction, the deformation quantity can be compensated through the extension part, and it can be ensured that the hollowed-out parts are still kept at preset positions; accordingly, the precision of the alignment between the mask and a backing plate can be improved, and the probability of poor color mixing for a product can be lowered; during the product manufacturing process, the deformation quantity of the mask can be automatically compensated, the product manufacturing process need not be interrupted, and then the production efficiency can be improved; and furthermore, the position design precision requirements of the hollowed-out parts of the mask can be reduced to a certain extent through the extension part, and the process cost can be reduced.