An embodiment of the invention discloses a digital television application management layer system and method based on embedded kernel. The system comprises a memory unification management module which is used for applying for memory space to an embedded system and setting the memory space into a resident memory resource of an application management layer; a memory allocation trigger module which is used for obtaining an interrupt response corresponding to a digital television application program that the embedded system wants to operate, analyzing hardware requirements needed for the operation of the digital television application program and allocating needed memory resources in the resident memory resource based on the hardware requirements; and a process scheduling management module which is used for maintaining a task queue having priority and establishing operation sequence of the application program based on the task queues and the priority level of the application program. According to the digital television application management layer system and method based on the embedded kernel, a program developer is allowed to carry out application development in a unified development environment, compatibility between the program and the embedded system is improved; and the overall stability and compatibility of the system are improved.