Relativistic transformation of temperature in equilibrium thermodynamics can again be studied with a new view point and method of analytical thermodynamics, and the same result of T=1-β2T0 obtained by Planck, Eins tein or de Broglie can again be obtained. In analytical thermodynamics, its characteristic or adva ntage is that the disputed relativistic transformation δQ=1-β2 δQ0 and the obvious relativistic transformation p=p0 are not needed, they are by-products in the derivation.