Embodiments provide a service acceleration method, system, apparatus, and server in an NFV system. For achieving these, a programmable package determining entity in the NFV system can determine a target service function that needs to be accelerated. A target programmable package corresponding to the target service function that needs to be accelerated can be obtained and the target programmable package to an acceleration engine in a network functions virtualization infrastructure (NFVI) can be sent. The acceleration engine runs the target programmable package to accelerate the target service function that needs to be accelerated. A programmable package of the acceleration engine can thus be dynamically replaced, and a service diversity requirement can be met, thereby improving scalability of a service acceleration function in the NFV system.