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The porous ceramic material can reduce the air flow, but also can achieve uniform air pressure, good distribution, and can provide sufficient float height and adsorption force required by work, and has been gradually applied to the conveying & precision positioning system for large-size TFT-LCD glass substrate and relevant process equipment.Therefore, this study discussed the above problems from reference and theoretical analysis, characteristics of porous ceramic, design and development of aerostatic platform and related technology application and so on.