The invention discloses a production method for automatically prefabricating a T-
shaped beam, which is characterized by comprising the following steps of: (1) prefabricating a T-
shaped beam; the method comprises the following steps: positioning a movable pedestal, manufacturing and mounting a web
steel bar, integrally hoisting the web
steel bar into a mold, closing a hydraulic template, manufacturing and mounting a top plate
steel bar, integrally hoisting the top plate steel bar into the mold, mixing and transporting T-beam concrete, pouring the T-beam concrete, demolding the T-beam and moving the T-beam to an intelligent steam-curing chamber, generating steam by a
combustion boiler, intelligently steam-curing the T-beam, moving the T-beam to an intelligent tensioning area, and tensioning the T-beam. And anchor sealing and grouting are conducted. An automatic T-beam prefabricating
system comprises a reinforcing steel bar
machining and mounting center, a concrete pouring center, a T-beam curing center, a T-beam tensioning and grouting center and a beam
yard intelligent monitoring center, and is characterized in that the reinforcing steel bar
machining and mounting center, the concrete pouring center, the T-beam curing center and the T-beam tensioning and grouting center are connected with the beam
yard intelligent monitoring center. The production period is short, the speed is high, and the maintained T-beam is uniform in color and luster and good in quality.