When making financial planning, most people would allocate their assets into different accounts according to its usage, such as setting up education account and retirement account. It seems human nature to adopt segregated accounts for financial planning and it is argued that segregated accounts planning method serves the function of self-control. However, segregated accounts planning method violates standard finance theory that would suffer investment efficiency with unnecessary losses. This article focuses on analyzing financial planning methods of integrated account and segregated accounts in the point of view of behavioral finance. The finding is that integrated account planning method would not only help achieve financial efficiency but help people overcome psychological bias.