The invention is directed to a process for producing a tea drink comprising the steps of: extracting tea leaves and adjusting the obtained tea extract to a pH of from 5.0 to 6.0; mixing nitrogen with the tea extract and applying a negative pressure of 0.01 MPa or more; subsequent to the step of applying a negative pressure, stabilizing the tea extract by maintaining it at atmospheric pressure for 30 seconds to 20 minutes; and during or after the stabilization step, adjusting the tea extract to a pH of from 5.5 to 6.5. The loss of aroma during the production process is suppressed, and a tea drink with a stable quality and an excellent aroma is produced.