This creation is to provide a kind of microdialysis probe, and being includes: a perfusate ingress pipe, and one end is a perfusate inlet, and other end system is in the plural connecting tube of fork; One dialyzate delivery line is to be worn to form a conduit by the tube wall of the perfusate ingress pipe, and one end extends outside the tube wall of the what perfusate ingress pipe, and other end system extends respectively to inside those connecting tubes; And a dialysis membrane, it is the port for coating the dialyzate delivery line. ; And a dialysis membrane, it is the port for coating the dialyzate delivery line; Cooperate the dialyzate delivery line and dialysis membrane of multiple ends by most connecting tubes, form the microdialysis probe of multiple forks, collect the dialyzate in each fork, most Hou is converged whole, sample point and the rate of recovery can be can increase, have the advantages of multi-dimensionality sampling, increase dialysis tubing surface area and sampling range, to shorten sampling and detecting time, the variation of sample can quickly and be effectively detected.本創作是提供一種微透析探針,其係包括:一灌流液導入管,其一端係一灌流液導入端,另一端係呈分岔之複數連接管;一透析液導出管,係由該灌流液導入管之管壁穿設形成一導管,其一端延伸於該灌流液導入管之管壁外部,另一端係分別延伸至該些連接管內部;以及一透析膜,係包覆該透析液導出管之端口。;以及一透析膜,係包覆該透析液導出管之端口;藉由多數個連接管配合多個端頭之透析液導出管及透析膜,形成多個分岔之微透析探針,可收集每個分岔內之透析液,最後彙整起來,可以能增加取樣點及回收率,具多向度取樣的優點,增加透析管表面積及取樣範圍,以縮短取樣及偵測時間,可快速並有效偵測樣品之變化。