The invention provides an automatic adjustment method of resolution of a video call of an intelligent terminal. The automatic adjustment method comprises the following steps of S1, obtaining video processing capacity of a local terminal by a local client, and setting an upper limit of video resolution according to the video processing capacity of the local terminal; S2, obtaining an access manner of a local network by the local client, as for different network access manners, transmitting a negotiation message carrying different resolution information to a remote terminal by the local client; S3, receiving the negotiation message by the remote terminal, selecting the resolution matched with the local client according to a resolution format supported by the own coding and decoding capacity and the network access manner, and replying to the local client through the negotiation message. According to the automatic adjustment method of the resolution of the video call of the intelligent terminal, which is provided by the invention, the proper parameters can be selected intelligently, the proper resolution is arranged, the excellent call quality in the video call is achieved, complexity and difficulty of user operation are reduced, and the good user experience is realized.