The invention discloses a method for releasing a high rate packet data (HRPD) session, including the following steps: S302, in the case that the access network (AN) determines to reauthenticate the access terminal (AT), it authenticates the AT via the established connection with the AT; S304, in the case that the reauthentication of the AT is not passed, the AN or the AT initiates the release of the HRPD session; S306, the AN closes the HRPD session with the AT, and sends to the packet control function (PCF) entity a first releasing message indicating of releasing the resource and the connection and starts a first timer; S308, the PCF eneity sends to the packet data service node (PDSN) a second releasing message indicating of releasing the connection and starts a second timer; S310, the PDSN releases the connection and feeds back a second release response message to the PCF entity, and the PCF entity stops the second timer upon receiving the second release response message; S312, the PCF entity sends a first release response message to the AN, and the AN stops the first timer upon receiving the first release response message.