The influence of physical properties of silver colloidal disperse system on Tyndall effect is analyzed, it is discovered that the laser beams in two different kinds of silver colloidal disperse system show different light paths distinctly under the same experiment condition. 通过实验,分析了银胶分散系物理性质对Tyndall效应的影响,发现在相同实验条件下,两种不同银胶体系中激光束呈现出明显不同的光径。