"The Chinese national is a businessman working in a major electronics company. the Pole is a person known in circles associated with cyber business", Maciej Wasik, the deputy head of Poland's special services, told PAP.
Security services have also searched the Polish offices of Huawei and telecoms firm Orange, according to state public TV channel TVP.
Huawei issued a statement from its Chinese headquarters that said it was aware of the situation and looking into it. Photo: Telewizja Republika YouTube screenshot.More news: Woman unable to hear male voices over rare medical condition
The Chinese telecommunications giant - who was founded by a former engineer for China's army - is also facing increased scrutiny over its alleged links to Chinese intelligence services.
Nonetheless, intelligence bods recommended banning the use of the kit, and official blocks are in place for state-funded projects in the US, Australia and New Zealand.
Poland has arrested a Chinese businessman working for the Huawei technology company on suspicion of espionage, authorities in Warsaw said today.
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.More news: New Zealand vs Sri Lanka - T20 International Preview & Prediction
He added that the investigation "had been going on for a while, and had been handled with great care".
The arrested pair will be held for three months, PAP reported, quoting a spokesperson for Polish security services.
The two men were arrested on Tuesday.
TVP reported that Huawei's office in Poland had been searched by the AWB, along with the offices of Orange Polska where the Polish national reportedly worked.More news: Nissan's Carlos Ghosn indicted on two new charges
Huawei has signed several agreements with wireless operators in Europe amid its progress in the 5G market.