Multi-functional seat armrest

This invention relates to a multifunctional seat armrest. It comprises a fixing seat, an armrest seat, a slide seat, an armrest pad, an adjusting device, and a rotator. The armrest seat pivotally installs upon the fixing seat. The slide seat fits with one end of the armrest seat. The armrest pad installs on the slide seat. The adjusting device installs on the slide seat. The rotator installs inside the armrest seat. The adjusting device is installed between the slide seat and the armrest seat. It makes the slide seat form a fixed or released state with the armrest seat whereby the height of the slide seat relative to the armrest seat can be adjusted when in a released state. The rotator is installed between the fixing seat and the armrest seat. The fixed or released state is formed between the armrest seat and the fixed seat whereby the rotation angle of the armrest seat relative to the fixing seat can be adjusted when in a released state. By means of this way, user operates the adjusting device to retain the slide seat at a suitable height and operate the rotator to retain the armrest seat at a suitable angle. The armrest pad is operated to slide shift into a suitable position. Eventually, it achieves a multifunctional armrest.