You just need to add table name to solve this error
CREATE PROCEDURE [dbo].[GetProducts] @F_Code VARCHAR(100)AS
BEGIN
SELECT furniture_p.id, furniture_p.name, [address] ,tell,name, count(furniture_p.behcode) as [count]
FROM furniture_ch, furniture_p
WHERE F_code =@F_CodeORDER BY furniture_p.date desc END