The invention belongs to the technical field related to additive manufacturing, and more particularly, relates to a shape and property integrated metal component additive manufacturing system. The shape and property integrated metal component additive manufacturing system comprises an object carrying platform, a multi-electric arc collaborative operation module, an electric arc camera shooting detection unit, a forming size three-dimensional measurement unit, a depositing forming digital monitoring module and the like, and uniform control is executed through a negative feedback monitoring module. The multi-electric arc collaborative operation module is equipped with a plurality of mutually independent electric arc guns, and relative positions and operating postures of the electric arc guns freely change. Through the shape and property integrated metal component additive manufacturing system, electric arc additive manufacturing overall processes of various large metal components can be executed based on a compact structure, convenience in control, high automaticity and high manufacturing accuracy, and the requirements of shape and property integrated collaborative additive manufacturing are met better.