The invention discloses a garbage collection system with a vacuumizing packaging function and a control method thereof. When the garbage collection system is applied for garbage collection, garbage isextruded and broken inside a filter pressing machine, and water is sufficiently extruded out, so that water in garbage collected by garbage bags is lowered, the stacking density is increased, the occupied space is reduced, blasting of a garbage can can be effectively avoided, and follow-up storage, conveying and treating cost can be lowered. Meanwhile, the weight and the volume of garbage insidethe garbage bag are monitored through a tension sensor and a material level sensor, the phenomenon that the garbage is excessively small in size and low in quality during packaging is avoided, it is ensured that the garbage bag is sufficiently utilized, and waste of the waste bag is avoided. Due to vacuumizing compression, the phenomenon that a large amount of air remains in the packaged garbage bag can be effectively avoided, the volume of the garbage bag is remarkably reduced, and the phenomenon that garbage bags expanding by air are stacked, rubbed and broken in the storage and transfer process is avoided.