Background: Effects of whole cell type immunization on mice Ehrlich tumours were evaluated. Materials and Methods: After preliminary study, mice were divided two major groups; $1{ imes}1000$ and $100{ imes}1000$ live Ehrlich cell transferred major groups, each divided into four subgroups (n: 10). Study groups were immunized with Ehrlich cell lysates in 0, 3, 7, $14^{th}$ days and after 30 days of last immunization, live Ehrlich cells were transferred. Mice were observed for six months and evaluated for total and cancer free days. Results: Out of $100{ imes}1000$ cell transferred solid type study group, all study group mean and tumour free periods were statistically longer than control groups. All $1{ imes}1000$ Ehrlich cell transferred study groups survived significantly longer than $100{ imes}1000$ Ehrlich cell transferred groups. Conclusions: Ehrlich mice tumours were prevented and survival prolonged with whole cell type immunization. Effects are related to the number of transferred tumor cells.