A picture updating method, the method being executed by a server and comprising: receiving an application startup instruction sent by a terminal, wherein the application startup instruction carries a terminal identifier and an application identifier of an application triggered by the terminal user; obtaining, in response to the application startup instruction, a target container indicated by the application identifier from an idle container pool, starting up the target container, and correlating the target container with the terminal identifier; receiving sensor data sent by a terminal, wherein the sensor data is collected by a hardware sensor of the terminal, wherein the sensor data carries the terminal identifier, and the receiving sensor data sent by a terminal comprises receiving, by using an application proxy, the sensor data sent by the terminal, and inputting the sensor data into the target container based on the terminal identifier, wherein the target container contains an application corresponding to the application identifier, a sensor service module, a virtual sensor, and an application backend, and the sensor service module is configured to provide the sensor service; writing the sensor data into a virtual sensor, wherein the virtual sensor has a structure corresponding to a structure of the hardware sensor and is configured to support a sensor service; reading the sensor data in the virtual sensor, updating a multimedia picture based on the sensor data, and generating updated multimedia data; and transmitting the updated multimedia data to the terminal, so that the terminal displays the updated multimedia picture based on the updated multimedia data; wherein the application backend is configured to receive the sensor data inputted by the application proxy, and write the sensor data into the virtual sensor; the application is configured to invoke the sensor service module to read the sensor data in the virtual sensor, update the multimedia picture based on the sensor data, and transmit the updated multimedia picture to the application backend; and the application backend is further configured to generate the updated multimedia data based on the updated multimedia picture, and transmit the updated multimedia data to the terminal through the application proxy. receiving an application startup instruction sent by a terminal, wherein the application startup instruction carries a terminal identifier and an application identifier of an application triggered by the terminal user; obtaining, in response to the application startup instruction, a target container indicated by the application identifier from an idle container pool, starting up the target container, and correlating the target container with the terminal identifier; receiving sensor data sent by a terminal, wherein the sensor data is collected by a hardware sensor of the terminal, wherein the sensor data carries the terminal identifier, and the receiving sensor data sent by a terminal comprises receiving, by using an application proxy, the sensor data sent by the terminal, and inputting the sensor data into the target container based on the terminal identifier, wherein the target container contains an application corresponding to the application identifier, a sensor service module, a virtual sensor, and an application backend, and the sensor service module is configured to provide the sensor service; writing the sensor data into a virtual sensor, wherein the virtual sensor has a structure corresponding to a structure of the hardware sensor and is configured to support a sensor service; reading the sensor data in the virtual sensor, updating a multimedia picture based on the sensor data, and generating updated multimedia data; and transmitting the updated multimedia data to the terminal, so that the terminal displays the updated multimedia picture based on the updated multimedia data; wherein the application backend is configured to receive the sensor data inputted by the application proxy, and write the sensor data into the virtual sensor; the application is configured to invoke the sensor service module to read the sensor data in the virtual sensor, update the multimedia picture based on the sensor data, and transmit the updated multimedia picture to the application backend; and the application backend is further configured to generate the updated multimedia data based on the updated multimedia picture, and transmit the updated multimedia data to the terminal through the application proxy.