Contrast experiment on Lentinula edodes cultivation on sawdust of Magnolia officinalis and on hard wood sawdust showed that there was no evident effect of sawdust of M. officinalis on yield, growth, quantity, size, form of cultivated L. edodes Besides, there were not any bark in the test M. officinalis sawdust based compost, but the experiment resulted that yield and quality of mushroom would not be change if the compost supplemented with other nutrients when there were bark in.