The work aims to study the influence of different screen printing processes on the performance of RFID tag, so as to obtain the combination of optimal screen printing process conditions. The effects of the scraper blade with different speed, pressure, angle and curing conditions on properties of RFID tag antenna were tested. The better quality of RFID tag antenna was obtained when scraper blade speed was between 50~70 m/min, pressure around 100 N/m, angle larger than 40°, curing temperature larger than 110 ℃ and curing time between 20~40 min. The results showed that the antenna' s impedance took on an U-shape variation tendency with speed, pressure and angle of scraper blade. The recognizable distance performed opposite. The antenna' s impedance decreased with curing time and temperature. However, the recognizable distance showed an opposite tendency.