Flat plate type ion collector

The utility model provides a flat plate type ion collector, and aims to solve the problem that negative/positive ion collection efficiency is affected due to non-uniform laminar flow characteristics of airflow in a channel of the ion collector. The flat plate type ion collector comprises a tubular through shell formed by sequentially connecting an outer shell, a connecting shell and a fan shell, the lower end of the tubular through shell is provided with an installation base used for fixing the collector, the free end of the outer shell is an air inlet end, and the air inlet end is provided with an air inlet flow guide grid used for flow guide. A plurality of polarization plates arranged in parallel are fixed on the inner wall of the joint of the outer shell and the connecting shell through polarization plate seats, and a gap for flowing air to pass through is formed between every two adjacent polarization plates. The negative/positive ion collector is particularly suitable for uniformly and stably collecting