The present invention provides an LPC host controller apparatus based on an AMBA bus architecture, which is used for implementing data communication between an AHB on the AMBA bus architecture and an AXI bus as well as an LPC bus and comprises: an AHB bus, the AXI bus, an AHB slave interface module, an AXI master interface module, an LPC bus interface module, an LPC main module and a DMA engine module, wherein three cycle types of data transmission, i.e. an input output, a memory and firmware, which are specified in an LPC 1.1 bus protocol, are implemented between an AHB bus interface and an LPC bus interface, and a DMA cycle type of data transmission, which is specified in the LPC 1.1 bus protocol, is implemented between an AXI bus interface and the LPC bus interface.