Embodiments of the invention disclose a method for detecting a fallback result of a circuit switched fallback CSFB, comprising: detecting that a wideband code division multiple access WCDMA network ignores a routing area update RAU request initiated by user equipment in the WCDMA network during a process of performing the CSFB based on indication information indicating that the user equipment performs voice service by using a preset CSFB optimization scheme; the RAU request is a routing area update request for a packet switch PS resource request initiated by the user equipment after completionof circuit switched CS-based voice communication establishment in the WCDMA network; detecting a voice communication state of the user equipment in the WCDMA network in a state in which the WCDMA network ignores the RAU request initiated by the user equipment; and determining whether fallback of the CSFB is successful at least according to the voice communication state. The embodiments of the invention also disclose an apparatus for detecting a fallback result of a CSFB, and a storage medium.