The effects of plastic film residue on emergence and root growth of corn seedlings were studied by pot experiments. The results showed that the plastic film residue had certain inhibitory effect on corn seedling emergence and root growth. Ordinary plastic film residue reduced the rate of maize emergence. The corn seedling germinated slowly. Corn seedling roots could hardly penetrate through the plastic film. Ordinary plastic film residue had effect on the aboveground growth and development of corn. Compared with ordinary film,degradable plastic film residue also had certain inhibitory effect on corn seedling emergence and root growth,but the harm to corn growth was less and disappeared as time passed.