The present invention relates to a method for separating solid from drilling slurry containing solid and a vibration separator, the method comprises a step for inducting the drilling slurry containing solid to a vibration separator with a basket, at least a sieve and a mechanism for vibrating at least one sieve, it is characterized in that at least a baffle is arranged for separating the basket as a first and a second separated space, the drilling slurry containing solid forms a first pool on one side of at least baffle and a second pool on the other side of at least baffle, the drilling slurry containing solid flows to at least a sieve from the first pool and the second pool. Keeping the solid on the surface of the sieve, it travels to canal or sunken so as to process further.