In this paper, 23 different developmental stages of pleurotus eryngii strains(mycelium of PDA、primordial period、fruiting period), different parts (stipe, cap) with the work of esterase enzyme spectrum, found between the different strains tested showed a greater genetic diversity, different developmental stages, sampling different parts of the same strain of the esterase pattern, are not identical; high-yield strains are simultaneously at different migration times were 0.71,0.84,0.91, the expression of high ...