用ＤＳＣ和密度法对茂金属间规立构聚丙烯（ｓＰＰ）样品进行了等温和非等温结晶动力学研究．测得平衡熔点Ｔ０ｍ为１５８℃，平衡熔融热焓ΔＨ０ｍ为３７ｋＪ／ｍｏｌ，侧表面自由能σ＝５２ｅｒｇ／ｃｍ２，折叠链表面自由能σｅ＝６９ｅｒｇ／ｃｍ２，链堆砌功ｑ＝３３７５ｋＪ／ｍｏｌ．对非等温结晶过程研究表明，由熔体结晶的ｓＰＰ具有非均相成核，三维球状生长机理．成核与生长活化能ΔＥ＝７３１ＫＪ／ｍｏｌ The isothermal and non-isothermal crystallization kinetics of metallocene-syndiotactic polypropylene (sPP) samples was studied by DSC and density method. The equilibrium melting point T0m was 158 ℃, the equilibrium melting enthalpy ΔH0m was 37kJ / mol, the surface free energy σ = 52erg / cm2, the surface free energy σe = 69erg / cm2,  75kJ / mol. Studies on the non-isothermal crystallization process show that the sPP crystallized from the melt has a heterogeneous nucleation and a three-dimensional spherical growth mechanism. The nucleation and growth activation energy ΔE = 731KJ / mol