The invention discloses an intelligent shoveling bus controlling system of a loader. According to the intelligent shoveling bus controlling system of the loader, a collecting bucket oil port, a movable arm lifting oil port, an overturning bucket oil port, a movable arm descending oil port and a floating oil port of an electric-hydraulic proportional pilot valve are connected with a collecting bucket oil port, a movable arm lifting oil port, an overturning bucket oil port, a movable arm descending oil port and a floating oil port of an electric-hydraulic proportional distribution valve respectively, a second oil inlet of the electric-hydraulic proportional pilot valve is connected with a large cavity of a movable arm oil cylinder, and an overturning bucket cylinder displacement sensor, a movable arm displacement sensor, a shoveling bucket horizontal displacement sensor, a main controller, a descending height setting button, a lifting height setting button, an electric control pilot handle and an engine controller are respectively connected with a bus. The intelligent shoveling bus controlling system of the loader is efficient, saves energy, is small in energy loss, improves the stability and comfort of work of the whole loader, is long in service life, is good in leveling function, avoids accidents, guarantees operation safety, improves operation efficiency, is favorable for upgrading and modification of products, and is used for controlling the shoveling process of the loader.