Evaluation standard and value standard are value dimensions by which people perform evaluations. Ever since the issues of value aroused people's attention theoretically, the questions about evaluation standard and value standard have engendered skepticism and difficulty. Just as Wartofsky said, value standard theoretically becomes one of the "most difficult and rigorous fields in the science of philosophy. The reason for its difficulty also lies in how to understand the objectiveness of evaluation and its standard. If the objectiveness does exist, the issues about evaluation and value theory might be the theoretical contents of a branch of science. Otherwise, the issues about value and evaluation will forever be excluded from science.