  Pairing correlations play a very important role in atomic nuclei. Although
several effective pairing interactions have been used in mean field
calculations for nucleons, little is known about effective pairing interactions
for hyperons. Based on the quark model, we propose a relationship between
effective pairing interactions for hyperons and for nucleons; e.g., for
$\Lambda$s, the strength of the pairing interaction is 4/9 of that for
nucleons. A separable pairing force of finite range which has been widely
applied to describing pairing correlations in normal nuclei is used to
investigate pairing effects in multi-$\Lambda$ Ca, Sn and Pb hypernuclei.
