QSAR anal. on a series of 28 derivatives of tetrahydroquinoline based on farnesyltransferase (FTase) inhibitory activity was performed.The inhibitory activities of these compounds were found to increase with electronegativity, polarizability, hydrophobicity and bulkiness.Excellent results were obtained from multiparametric regression upon introduction of indictor parameters.It was found that the presence of imidazolyl group at X-position and 2-Me propene group at Y-position was conductive for FTase inhibitory activity, and the presence of parazolyl group at X-position and Me cyclohexane at Y-position was found to be detrimental to FTase inhibitory activity.The results are critically discussed on the basis of regression data and crossvalidation technique.