The objective of this course is to internship mainly verify the positive knowledge and theory, because a variety of mites tick body shape, morphological characteristics and part of the damage, only through the experimental microscope observation can clearly observe and identify. This course adopts the self-developed agricultural mite tick science experiment technology. The objectives of the experiment are as follows: Through the observation and training of experimental class, familiar with the main morphological and classification features of common mite ticks and the damage characteristics to crops or animals, can we cultivate the correct identification of agriculture The main types of mite tick ability to lay the foundation for future study and work.