In a service deployment method performed by a function management platform that includes a function scheduler and a function executor manager, the function scheduler receives a function call request that carries a function identifier, selects an available host based on resource pool information of a tenant, and sends a function instance creation request to the function executor manager. The function executor manager receives the function instance creation request, selects the host corresponding to the host identifier from the resource pool of the tenant, and creates a function executor corresponding to the function identifier on the host.