Goal: Research gingko leaf blade's production craft and qualitycontrol standard. Method: According to the GMP production requestpreparation gingko leaf blade, and from the character, the weightdifference, the content measured grades the aspect begins according to"the Chinese Pharmacopoeia" the stipulation to the gingko leaf bladeto carry on the examination. Finally: Each examination result conformsto the quality specification requirement. Conclusion: The gingko leafblade produces which according to this craft completely conforms tothe GMP requirement.