The invention provides a vacuum cleaner charging device and a vacuuming system and relates to the technical field of household appliances, in order to solve the problem that a backup battery cannot beseparately charged when during the charging process of a vacuum cleaner. The vacuum cleaner charging device comprises: a charging mechanism and a support frame mounted on the bottom of the charging mechanism. The charging mechanism comprises a main body charging part and a battery compartment. The main body charging part is provided with a main body support base and a main body charging port forcharging the main body of the vacuum cleaner. The bottom of the main body charging part is detachably connected to the support frame. At least one side of the main body charging part is provided withan assembly hole. A battery charging port for charging a battery is disposed in the battery compartment. The vacuum cleaner charging device can simultaneously charge the main body of the vacuum cleaner and the backup battery, and can also be charged by the main body of the vacuum cleaner and the backup battery separately, thereby saving charging time and reducing the time of the vacuum cleaner waiting for charging.