The main problem of the educational evaluation validity is that it just copies the conceptual framework system of validity from educational measurement to its own conceptual system. The validity conceptual system that fits the need of theory and practice of educational evaluation has not been established yet. According to the inherent attributive character of educational evaluation, this paper constructs eight concepts of validity in educational evaluation: objective validity, construct validity, content validity, cross validity, subject validity, process validity, function validity and result validity, and elaborates its basis and connotation.