Objective:To investigate variety pattern of expression level of TCRV?subfamilies in mononuclear cell in spleen tissue of rats with dampness pathogenic factors and normal rats by using FQ-PCR technique. Methods:32 SD rats were divided into four groups: normal group, external dampness group, internal dampness group, external and internal dampness group. Observing period was 20 days. 3 Rats were randomly selected from each group in order to exam the TCRV? subfamilies expression level. Results:The expression of TCRV?1, TCRV?7, TCRV?9 and TCRV?13 in external dampness group were higher than those in normal group (P