We present the dispersion managed mode-locking pulse generation in Er-doped fiber laser in this work. The linear cavity laser scheme is implemented with all-fiber ring serving as total reflection mirror and SESAM as mode-locker and non-transparent mirror. The dispersion compensation is applied to change net dispersion from anomalous to normal dispersion, which integrates mode-locked regimes in -0.495 ps2~+0.197 ps2 net-cavity-dispersion range by incorporating different lengths of DCF. The noise-like mode-locked pulse and conventional soliton are observed during the net-cavity-dispersion variation process. In addition, the homemade MSCs are utilized to realize high mode purity OAMs output based on mode superposition principle.