A ground brush for a vacuum cleaner includes a ground brush body, brushroll cover, and brushroll. The ground brush body has a first locking member. The brushroll cover has a lower end rotatingly connected with the ground brush body through a rotating shaft, and an upper end provided with a snapping cooperating part. When the brushroll cover is rotated to be opened at a certain angle, the first locking member cooperates with a second locking member to lock the brushroll cover to the ground brush body. The brushroll is rotatably disposed on the brushroll cover, and has a lower end connected with the lower end of the brushroll cover and an upper end provided with a snapping part, in which the snapping part is configured to cooperate with the snapping cooperating part, such that the brushroll cover can drive the brushroll to rotate relative to the ground brush body.