The invention discloses a collection method for media gateway information when frameless release call is performed on a base station controller side. The method comprises the following steps: (a), a media gateway controller MGC receives a call resource release request sent by a base station controller BSC and then assigns a modification command with a frameless statistics instructional package toa media gateway MGW; (b) the MGW collects the related information according to the frameless statistics instructional package after receiving the modification command. The collection of the related information on the MGW can be realized when the frameless release call is performed by adopting the technical proposal.