As an important branch of linear motors, linear oscillating motor with high frequency provides reciprocating motion within short-stroke, which shows high efficiency, large power density and convenient maintenance, and has an important application value in electric vehicles, aviation and medical field. However, recent researches mostly focus on the structure design of linear motors and control strategies, rarely on its loading system. Traditional loading methods such as magnetic powder brake and weight loading cannot satisfy its special motion pattern and high frequency response requirement. For solving this problem, this paper designs an axial-magnetized voice-coil motor as the force loading system, effectively realizing various types of loading force simulation, such as spring, viscosity and hydraulic square wave force, which provides an effective solution and experimental means for the comprehensive analysis of linear oscillating motor performance.