Palmer United Party leader Clive Palmer has launched an extraordinary attack on Senator Jacqui Lambie, claiming she has lied to the Senate and is plotting to set up her own political party.

In a statement released late Wednesday afternoon, Mr Palmer said Senator Lambie had not spoken to him for a month and had failed to return all phone calls.

PUP Senator Jacqui Lambie launches a stinging attack against Clive Palmer. Credit:Alex Ellinghausen

"This is because Senator Lambie's planning to set up an alternate political party," Mr Palmer said.

"Jacqui Lambie has not brought forward one proposal to the party about Tasmanians, the people who elected her, or about veterans."