In this research, the principles of TRIZ are applied in designing an Adjustable Wine Pourer especially for bar operation, which can produce at most 8 glasses of wine at a time, each at the same amount. In a banquet or at a bar, bartenders or attendants need to serve many guests. To meet the need of everyone, they are often observed pouring wine repeatedly, one glass after another, which is not only exhausting but also time-consuming. To solve the problem, a wine pourer which can produce a multiple number of wines is a must. In response to the need, our wine pourer is designed to produce 8 glasses of wine at a time, each precisely at 750ml. Equipped with 8 spouts, it can serve eight guests all at once with the exact amount. If fewer glasses are needed, tiny sluices can be operated to cut down on the output numbers. The width of each spout can also be adjusted by those sluices to lessen the amount poured into certain glasses. Thus, the individual need of each guest can be satisfied efficiently.