Vacuum cleaner dust collection bag

The utility model provides a dust collection bag of a vacuum dust collector, which comprises a bag body, a dust inlet, a connecting piece, a sealing piece and a spring, the middle of one side of the surface of the connecting piece is connected with the outer end of the dust inlet; the sealing piece is in nested connection with the outer side of the surface of the connecting piece; the number of the springs is two, and the springs are symmetrically arranged on the two sides of the surface of the connecting piece. Due to the arrangement of the connecting piece, the sealing piece and the spring, the dust inlet can be automatically sealed in time when the dust collector is used up and taken out, manual sealing is not needed any more, the problem that dust leaks when the dust collector is taken out again is effectively solved, and market popularization and application are facilitated. 本实用新型提供一种真空吸尘器集尘袋，包括袋体，入尘口，连接件，密封件和弹簧，其中：入尘口设置在袋体一端的中间；所述连接件表面一侧的中间与入尘口的外端进行连接；所述密封件与连接件表面的外侧进行嵌套连接；所述弹簧设置有两个，且弹簧呈对称的位置设置在连接件表面的两侧。