A method for scheduling signal transmit power, which is performed by a communication base station comprising a power scheduling apparatus and a power amplifier, the method comprising: obtaining, by the power scheduling apparatus, power amplifier feature information and service requirement information of the power amplifier, wherein the service requirement information comprises requirement information of a real-time service and requirement information of a non-real-time service; determining, by the power scheduling apparatus, a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information; and performing, by the power amplifier, transmit power regulation according to the regulation parameter to obtain amplified transmit power, wherein the amplified transmit power satisfies a requirement of traffic of the real-time service; and in case that a power requirement of the real-time service is satisfied, scheduling, by the power amplifier, a service in the non-real-time service according to the scheduling parameter and allocating output power requirements of the power amplifier of the non-real-time service to different time periods according to the power amplifier feature information wherein the power amplifier feature information indicates work efficiency of the power amplifier in a working state; and the obtaining the power amplifier feature information comprises: determining a corresponding relationship between input power and output power of the power amplifier according to an environmental parameter to obtain the power amplifier feature information, wherein the environmental parameter comprises ambient temperature or ambient humidity; or determining a corresponding relationship between input power and output power of the power amplifier according to a service parameter to obtain the power amplifier feature information, wherein the service parameter comprises a state of the power amplifier, wherein the state of the power amplifier is normal or faulty, or a transmit bandwidth. obtaining, by the power scheduling apparatus, power amplifier feature information and service requirement information of the power amplifier, wherein the service requirement information comprises requirement information of a real-time service and requirement information of a non-real-time service; determining, by the power scheduling apparatus, a regulation parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier feature information; and performing, by the power amplifier, transmit power regulation according to the regulation parameter to obtain amplified transmit power, wherein the amplified transmit power satisfies a requirement of traffic of the real-time service; and in case that a power requirement of the real-time service is satisfied, scheduling, by the power amplifier, a service in the non-real-time service according to the scheduling parameter and allocating output power requirements of the power amplifier of the non-real-time service to different time periods according to the power amplifier feature information wherein the power amplifier feature information indicates work efficiency of the power amplifier in a working state; and the obtaining the power amplifier feature information comprises: determining a corresponding relationship between input power and output power of the power amplifier according to an environmental parameter to obtain the power amplifier feature information, wherein the environmental parameter comprises ambient temperature or ambient humidity; or determining a corresponding relationship between input power and output power of the power amplifier according to a service parameter to obtain the power amplifier feature information, wherein the service parameter comprises a state of the power amplifier, wherein the state of the power amplifier is normal or faulty, or a transmit bandwidth. determining a corresponding relationship between input power and output power of the power amplifier according to an environmental parameter to obtain the power amplifier feature information, wherein the environmental parameter comprises ambient temperature or ambient humidity; or determining a corresponding relationship between input power and output power of the power amplifier according to a service parameter to obtain the power amplifier feature information, wherein the service parameter comprises a state of the power amplifier, wherein the state of the power amplifier is normal or faulty, or a transmit bandwidth.