An implementation method for avoiding installing a driver of a data card, comprising: device side software of a data card enumerating said data card as a compound device, and said compound device having at least one human interface device, HID, function interface of a HID type; said device side software of the data card mapping all of other function interface data of said data card into said HID function interface, and taking said HID function interface as a channel interacting data with a PC side; characterised by: providing green software and building said green software in a storage area of said data card, wherein said green software is free-of-installation graphical interface software and is automatically obtained and run by an operating system of a computer after inserting said data card into the computer, to provide an operating platform for a user controlling said data card, wherein the user controlling said data card comprises:receiving and identifying a user operation through said green software, and sending a control instruction of the user to the device side software of said data card through the HID user interface brought by the operating system of the computer; said device side software of the data card receiving a control instruction of the user through said HID function interface, analysing said control instruction, and executing a data card operation according to the analysed control instruction; said device side software of the data card executing a dial-up Internet connection operation after analysing that said control instruction is a control instruction of dial-up Internet connection, obtaining data from a network side, and sending the obtained network data to the computer by the HID function interface; and opening a browser after identifying an operation of the user invoking a PC browser, and providing a required webpage for the user according to the network data sent from said device side software of the data card, wherein the step of mapping all of other function interface data of said data card into said HID function interface comprises: the device side software of said data card encapsulating the other function interface data as HID report format data, so as to implement mapping all of the other function interface data into said HID function interface. device side software of a data card enumerating said data card as a compound device, and said compound device having at least one human interface device, HID, function interface of a HID type; said device side software of the data card mapping all of other function interface data of said data card into said HID function interface, and taking said HID function interface as a channel interacting data with a PC side; characterised by: providing green software and building said green software in a storage area of said data card, wherein said green software is free-of-installation graphical interface software and is automatically obtained and run by an operating system of a computer after inserting said data card into the computer, to provide an operating platform for a user controlling said data card, wherein the user controlling said data card comprises:receiving and identifying a user operation through said green software, and sending a control instruction of the user to the device side software of said data card through the HID user interface brought by the operating system of the computer; providing green software and building said green software in a storage area of said data card, wherein said green software is free-of-installation graphical interface software and is automatically obtained and run by an operating system of a computer after inserting said data card into the computer, to provide an operating platform for a user controlling said data card, wherein the user controlling said data card comprises:receiving and identifying a user operation through said green software, and sending a control instruction of the user to the device side software of said data card through the HID user interface brought by the operating system of the computer;