A symmetrical mixed-grade composition glulam was fabricated using 30~40-yr-old Japanese cedar plantation timber in this study. Each glulam with size of 140×304×3000 mm was connected end-to-end longitudinally to form a 6000-mm beam member. Two types of metal connectors were designed for moment splicing at the beam connection with various numbers of fasteners. The beam-to-beam-connected member was subjected to a 4-point flexural test with 6 stages of repeated loading and a monotonic loading application. Results indicated that glulam beams joined with U-type connectors had 14 and 22% higher modulus of rupture (MOR) and modulus of elasticity (MOE), respectively, than those with T-type connectors. The MOR of beam-to-beam-connected glulam members assembled with both 6 and 8 fasteners using the T-type connector increased by 23% compared to that with 4 fasteners, and 43% when using the U-type connector. MOR values of beam-to-beam-connected glulam members with T- and U-type connectors reached 56~71 and 57~87%, respectively, of the given strength capacity for an assigned glulam grade. In the case of the MOE, values were 71~84% for T-type connection groups and 89~98% for U-type connection groups compared to the given MOE of the assigned grade for Japanese cedar. Stable envelop curves indicated that glulam beams connected with the T-type connector and 4 fasteners had a 35% lower bending load capacity and 37% lower stiffness among different connector types and various numbers of fasteners.