The invention discloses a server capable of searching key parameters influencing the performance of a big data system. The server comprises a server shell, a moisture-proof box is installed at the top of the server shell, guide pipes arranged in a matrix are installed at the bottom of the moisture-proof box in a penetrating manner, a top plate is installed at the top of the moisture-proof box in an embedded manner, the four corners of the bottom of the server shell are each provided with an anti-tilting foot-pad column, three sets of partition plates arranged along a vertical direction are installed on the inner wall of the server shell at equal intervals, heat dissipation plates are installed on the outer walls of the two sides of the server shell through bolts, and dustproof frames are installed on the surfaces of the sides, away from the outer walls of the server shell, of the heat dissipation plates through bolts. The dustproof frames are adopted, when a cooling fan stops working, blocking pieces can be closed, external foreign matter is prevented from entering the server, meanwhile, the two sets of blocking pieces adjacent to each other along a vertical direction can cover the server in a fish scale mode, and therefore, when dust accumulated on the surfaces of the blocking pieces is cleaned, dust removal can be achieved only by wiping the blocking pieces with wiping cloth from top to bottom, and convenience and rapidness are achieved.