Along with the Chinese national, whose name has been reported as Weijinga W., the Polish counterintelligence service, the Internal Security Agency (ABW), arrested Polish national Piotr D., the ABW's own former employee, Polish broadcaster TVP reports.
Poland's public TV channel TVP reports that the Chinese national is a sales director at Chinese telecoms firm Huawei's Polish branch.
An official says Poland's Internal Security Agency has arrested a Chinese businessman and a Pole on suspicion of espionage. They'll both remain in custody for at least three months.
In response to the searches and arrests, Huawei stated that the company will investigate the allegations and that it expects every employee to comply with local law.
Both men's homes had also been searched during the investigation.
The development comes as a USA dispute with China over a ban on Huawei is spilling over to Europe, the company's biggest foreign market, where some countries are also starting to shun its network systems over data security concerns.
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This week's detention of Wang Weijing follows the December arrest of Huawei's chief financial officer in Canada and USA efforts to blacklist the company internationally over security concerns.
Authorities in Poland arrested an employee of the Chinese tech giant Huawei and charged him with espionage, Reuters reported.
In addition to this, Huawei have come under fire from authorities in Norway, Germany, the U.S., the UK, Australia and New Zealand, with several countries outright banning the use of their devices or equipment used in 5G mobile networks.
A spokeswoman at the Chinese Embassy told The Associated Press that embassy representatives have met with officials at Poland's Foreign Ministry and that China urges Poland "to inform China about the situation of this case and arrange a consular visit as soon as possible".
The United States wants Meng extradited to face charges that she misled banks about the company's business dealings in Iran.
Last month, the European Union condemned the detention of the Canadian nationals Michael Kovrig and Michael Spavor.
Huawei in December said it expects to see a 21 per cent rise in revenue for 2018 despite what it called "unfair treatment" around the world, as several countries banned its telecommunications technology.