These experiments were carried out to investigate anatomical properties of Forsythia in Korea. The results obtained were summarized as follows: It was estimated that the vessel of cross section was almost simple pore and multiple pores which were compounded two or three units were showed sometimes and arrangement of vessel were ring porous wood. In the mean length of vessel, Forsythia koreana was ranged $539.98{pm}154.71{mu}$ and Forsythia ovata $602.22{pm}157.38{mu}$ and Forsythia nakaii T. Lee $465.50{pm}83.02{mu}$. In the mean length of fiber wood, Forsythia koreana $387.40{pm}68.23{mu}$, and Forsythia ovata was $533.90{pm}106.77{mu}$ and Forsythia nakaii T. Lee was $482.40{pm}72.33{mu}$. The type of Ray parenchyma was heterogeneous ray I tissue. The mean length of procumbent ray cell in the radial section was $42.14{pm}8.30{mu}$ and that of rectangle type in up right ray cell was $45.76{pm}7.19{mu}$ and that of square type was $26.66{pm}2.99{mu}$. The mean height of ray parenchyma in the tangential section was $174.80{pm}37.51{mu}$ and the width of ray parenchyma was $17.25{pm}3.59{mu}$ and the mean number of ray parenchyma was $14{pm}3$.