A cement mortar type rock bolt assembly is provided to supply filling mortar to a leading end of the rock bolt along a supply hose. A cement mortar type rock bolt assembly comprises a sealing unit(200), which is installed on a rock bolt(100) in order to prevent downflow of an adhesive and has an adhesive injection passage, and a supply hose(400), which includes a flexible hose contracted by external pressure of the adhesive, is connected to the adhesive injection passage of the sealing unit at one end thereof, and extends to a leading end of the rock bolt at the other end thereof. The adhesive is supplied to the leading end of the rock bolt along the supply hose through the adhesive injection passage. The supply hose is connected to a wedge cap(210) at one end thereof.
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