This article shows how in Sql Server we can check the existence of Temporary Table.

To demonstrate this let us first create a Temporary Table with name #TempTable.

--Create Temporary Table
 CREATE TABLE #TempTable (Id INT)
 GO

Below script shows how we can check the existence of a Temporary Table #TempTable.

IF OBJECT_ID('TempDB.dbo.#TempTable') IS NOT NULL
BEGIN
  PRINT '#TempTable Temporary Table Exists'
END
GO

RESULT:

Note: As shown above to check the existence of a temporary table, we need give table name with three part naming convention i.e. DatabaseName.SchemaName.TemporaryTableName

[ALSO READ] :
How to check if a Database exists
How to check if a Table exists
How to check if a Stored Procedure exists in Sql Server
How to check if a View exists
How to check if a record exists in table