The invention provides a method for dynamically testing wettability and the testing system thereof, relates to a method for testing the wettablity of the solder, metal, ceramic, composite materials and fiber and the testing system thereof and belongs to the material performance detecting method and the detecting equipment thereof technical field, which comprises the wetability dynamic testing method, wetability dynamic testing software, an automatically controlled system (computer), a heating (cooling) system, a suspension system, a force testing balance system and a height adjusting hoist system. The method for dynamically testing wettability and the testing system thereof provided by the invention is capable of performing dynamic evaluation on the wetability of solder, the weldability of metals, ceramic and composite materials and the wetability of fiber to solution, and is capable of measuring the total wetting time.