The invention provides a streaming media downloading and playing method, device, storage medium and terminal equipment. The downloading method comprises the following steps: downloading and analyzingan original media file to acquire a download address of streaming media fragment, the download address of a decryption key of the streaming media fragment, and an encryption format of the streaming media fragment; and then downloading the streaming media fragment according to the analyzed information, and storing the downloaded streaming media fragment in a media storage area; and downloading thedecryption key according to the encryption format and the download address of the decryption key; encrypting the decryption key of the streaming media fragment and storing the encrypted key in a key storage area; and finally generating an offline media file provided for a player for performing an offline playing operation according to the storage address of the downloaded data. By adopting the method provided by the invention, the situation that the streaming media file is distributed to other equipment or other players to play can be avoided.