The following boundary value problem of fractional integro-differential equation {Dαu(t)=f()t,u(t)+∫0k()s,u(s)ds,5〈α〈6,0≤t≤1u(1)=limt→o(t)t2-α=0 was studied by using the Sehauder fixed point theorem and the generalized Gronwall inequality, we give a suffcient condition for the existenee and uniqueness of the solution.%研究下列分数阶微积分方程的边值问题：{Dαu（t）=f（）t,u（t）＋∫0k（）s,u（s）ds,5〈α〈6,0≤t≤1u（1）=limt→o（t）t2-α=0通过运用Schauder不动点定理和广义Gronwall不等式,给出了解的存在性和唯一性的充分条件.
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