"We are dealing with threats to the ambassador's address," a Dutch foreign ministry spokesman told AFP.
"We take the security of the embassy very seriously, and that is also the subject of consultations between the Netherlands and Pakistan. For security reasons, I cannot make any further comment."
Pakistan's interior ministry last month wrote a secret memo on plans to "target" the Dutch ambassador by the hardline Islamist Tehreek-e-Labaik Pakistan party (TLP), media from both countries reported.
"It has been reported that elements associated with Tehreek-e-Labaik Pakistan (TLP) are planning to target (the) Dutch ambassador... to seek revenge for uploading of blasphemous caricatures by Geert Wilders, Dutch parliamentarian, on his personal Twitter account," the memo said.
However, he said the group "demand the Dutch government expel Wilders from their parliament and if they don't do so, the government of Pakistan should dismiss the Dutch ambassador from Pakistan."
More recently, the TLP has led demonstrations against a Pakistan court ruling saving Christian woman Asia Bibi from death row where she had been languishing on blasphemy charges.
Bibi's lawyer, Saif-ul-Malook, fled to The Netherlands at the weekend saying there had been threats to his life -- although on Monday he said the UN and EU had made him leave Pakistan.