This article describes a well‐known effect in behavioral economics‐ choice overload. Previous experiments have proved that when consumers are provided with more product choices, the more information they need to weigh, and ultimately cause consumer dissatisfaction or even abandon purchase. The experiment in this article further confirms the authenticity of choice overload and its wide range of applications. But at the same time, the experiment uses pensions, such as products that are not familiar enough for people, to compare with common products such as notebooks, which proves that in the habitual buying behavior of people such as purchasing notebooks, because people do not need to think too much information on this kind of familiar products, the choice overload effect will also be reduced.