The objective of this study was to determine the functional response of the predator Phytoseiulus persimilis Athias-Henriot fed on Tetranychus urticae Koch larvae, nymphs and adults at different densities. A logistic regression of the proportion of prey consumed as a function of initial prey density was conducted to identify functional response types, and used nonlinear least-squares regression and the random predator equation to estimate attack rates and handling times. Overall, adult females P. persimilis exhibited a type 2 functional response to  T.  urticae. Whereas, attack rate (a) and handling time (T_h) of P. persimilis recorded 0.1722, 0.5034 and 0.4776 and 1.4699, 2.1133 and 3.051 when offering larvae, nymphs and adults of T. urticae respectively.