An application download monitoring method, wherein the method comprises: detecting, by a mobile terminal, whether access URL information requested by a plurality of first applications comprises an application download request; when detecting that access URL information requested by any one of the plurality of first applications comprises an application download request, blocking, by the mobile terminal, the application download request, and sending the URL information to a server; querying, by the server based on the application download request in the URL information, whether a security analysis result of a second application corresponding to the application download request exists, and if finding the security analysis result, sending, by the server, the security analysis result to the mobile terminal; and determining, by the mobile terminal based on the security analysis result, whether to download the second application; wherein the method further comprises: sending, by the mobile terminal, a list of application package names of installed applications to the server; and configuring, by the server, monitoring information based on the list of application package names, and sending the monitoring information to the mobile terminal, wherein the monitoring information comprises a list of application package names of the plurality of first applications that need to be monitored and a rule of identifying an application download request in URL information; and the step of detecting, by a mobile terminal, whether access URL information requested by any one of a plurality of first applications comprises an application download request comprises: detecting, by the mobile terminal based on the monitoring information, whether the access URL information requested by any one of the plurality of first applications that need to be monitored comprises an application download request. detecting, by a mobile terminal, whether access URL information requested by a plurality of first applications comprises an application download request; when detecting that access URL information requested by any one of the plurality of first applications comprises an application download request, blocking, by the mobile terminal, the application download request, and sending the URL information to a server; querying, by the server based on the application download request in the URL information, whether a security analysis result of a second application corresponding to the application download request exists, and if finding the security analysis result, sending, by the server, the security analysis result to the mobile terminal; and determining, by the mobile terminal based on the security analysis result, whether to download the second application; wherein the method further comprises: sending, by the mobile terminal, a list of application package names of installed applications to the server; and configuring, by the server, monitoring information based on the list of application package names, and sending the monitoring information to the mobile terminal, wherein the monitoring information comprises a list of application package names of the plurality of first applications that need to be monitored and a rule of identifying an application download request in URL information; and the step of detecting, by a mobile terminal, whether access URL information requested by any one of a plurality of first applications comprises an application download request comprises: detecting, by the mobile terminal based on the monitoring information, whether the access URL information requested by any one of the plurality of first applications that need to be monitored comprises an application download request. sending, by the mobile terminal, a list of application package names of installed applications to the server; and configuring, by the server, monitoring information based on the list of application package names, and sending the monitoring information to the mobile terminal, wherein the monitoring information comprises a list of application package names of the plurality of first applications that need to be monitored and a rule of identifying an application download request in URL information; and the step of detecting, by a mobile terminal, whether access URL information requested by any one of a plurality of first applications comprises an application download request comprises: detecting, by the mobile terminal based on the monitoring information, whether the access URL information requested by any one of the plurality of first applications that need to be monitored comprises an application download request.