Multisim11是一个适用于电子电路、单片机及VHDL等多学科的仿真与设计的EDA工具软件。文章介绍了Multisims11仿真软件的主要功能及特点,并结合该软件对单调谐高频小信号放大电路的主要质量指标进行了测试与仿真分析,结果直观、精确,很好地验证了理论,表明该软件有强大的仿真和分析功能,在实现高频电路分析和设计方面不仅高效、可靠,而且具有逼近真实电路的效果。 Multisim11 is a EDA tool for multi-disciplinary simulation and design of electronic circuits, microcontrollers and VHDL. The article introduced the main function and characteristic of Multisims11 simulation software. Combined with this software, the main quality index of monotonic high frequency small signal amplification circuit was tested and simulated. The result proved the theory intuitively, accurately and well, Software has powerful simulation and analysis capabilities, not only efficient and reliable in the realization of high-frequency circuit analysis and design, but also has the effect of approximating the real circuit.