Objective To establish the APCmin/+;Mac-1-/- mice. Methods Female PSGL-1 KO mice were mated with male APCmin/+ mice and male progeny carrying the APCmin/+ transgene. Mice were genotyped by PCR. Results After female Mac-1 KO mice were mated with male APCmin/+ mice for three generations, APCmin/+;Mac-1-/- mice were established. Conclusion APCmin/+;Mac-1-/- mice were obtained and propagated through APCmin/+ mice being mated with MAC-1 KO mice.