The invention relates to a water inlet valve resistant to dirt, easy to clean and fast to disassemble. A filtering assembly and a water inlet separator are arranged between a water inlet channel and a water outlet of the water inlet valve, water entering the water inlet channel flows through the filtering assembly for being filtered and is divided into two branches by the water inlet separator, water in the main water way flows to the water outlet for being fed, and water in the auxiliary water way flows to a water stop valve for controlling the water inlet valve to stop water; the filtering assembly and the water inlet separator are connected for forming a filtering and water splitting mechanism, an insertion opening is formed in the upper end, opposite to the water inlet channel, of the water inlet valve, and the filtering and water splitting mechanism is inserted into the water inlet channel from the insertion opening and is disassembled from the insertion opening. When the water inlet valve is blocked by foreign matter and cannot be fed with water, there is no need to disassemble a water inlet pipe, and users just need to take out the filtering and water splitting mechanism from the top of the water inlet valve through a disassembly assembly and wash the filtering and water splitting mechanism through water. When the water inlet valve does not stop water, similarly, the users just need to take out the filtering and water splitting mechanism fast, disassemble the water inlet separator and the filtering assembly, disassemble a filtering net and wash the filtering net through water.