A quick application startup method, wherein the method comprises: sending, by an electronic device, a first request to an application server, wherein the first request is used to indicate the application server to send an acceleration script of one or more quick applications to the electronic device, wherein a quick application is an application that does not need to be installed in advance and that is downloaded immediately when needs to be used; receiving, by the electronic device, the acceleration script that is of the one or more quick applications and that is sent by the application server; detecting a first operation for a target quick application, and in response to the first operation, sending, by the electronic device, a second request to the application server, wherein the second request is used to request an application package of the target quick application, and an acceleration script of the target quick application is comprised in the acceleration script of the one or more quick applications; in response to the first operation, running, by the electronic device, the acceleration script of the target quick application to obtain a first uniform resource locator, URL, and obtaining first data from a third-party server based on the first URL, wherein the first data is associated with an initial interface of the target quick application when the target quick application is started; receiving while obtaining the first data, by the electronic device, the application package that is of the target quick application and that is sent by the application server; running, by the electronic device, the application package of the target quick application to obtain a second URL; and when the first URL is the same as the second URL, generating and displaying, by the electronic device, the initial interface of the target quick application based on the first data. sending, by an electronic device, a first request to an application server, wherein the first request is used to indicate the application server to send an acceleration script of one or more quick applications to the electronic device, wherein a quick application is an application that does not need to be installed in advance and that is downloaded immediately when needs to be used; receiving, by the electronic device, the acceleration script that is of the one or more quick applications and that is sent by the application server; detecting a first operation for a target quick application, and in response to the first operation, sending, by the electronic device, a second request to the application server, wherein the second request is used to request an application package of the target quick application, and an acceleration script of the target quick application is comprised in the acceleration script of the one or more quick applications; in response to the first operation, running, by the electronic device, the acceleration script of the target quick application to obtain a first uniform resource locator, URL, and obtaining first data from a third-party server based on the first URL, wherein the first data is associated with an initial interface of the target quick application when the target quick application is started; receiving while obtaining the first data, by the electronic device, the application package that is of the target quick application and that is sent by the application server; running, by the electronic device, the application package of the target quick application to obtain a second URL; and when the first URL is the same as the second URL, generating and displaying, by the electronic device, the initial interface of the target quick application based on the first data.