In this work, we employing pulse voltage to driving atmospheric pressure plasma jet (APPJ) in Helium, and mainly consider the evolution of discharge inside tube. Specifically, the effects of rising edge on the discharge evolution were studied by combing the simulation and experiment. The temporal and spatial evolution of electron density, ionization source, electron temperature and excited helium atom were evaluated. Besides, the effect mechanism of rise time was analyzed by the parameters such as discharge current, sheath thickness and surface charge density distribution. In considered cases, the ionization wave propagates to the ground electrode and downstream of the active electrode in the dielectric tube. Plasma with faster rising edge has larger electron temperature, discharge current, electron density and electric field strength. With the change of voltage rising edge, there are two discharge modes: hollow mode and solid mode in DBD area. When the rising edge is nanosecond and sub microsecond, it develops in hollow mode, and changes to solid mode after the rising edge continues to increase. Both discharge modes are essentially affected by the sheath thickness, the electric field distribution and the surface charge density inside the tube. When the sheath thickness is less than 1.8mm, the plasma usually propagates in hollow mode, and when the sheath thickness is equal to 1.8mm, the radial propagation range of the plasma is limited and changes to solid propagation. In the DBD region, when the electric field is mainly axial component, the plasma propagates in the mode at the beginning of discharge; Inside the ground electrode, due to the radial deflection in the direction of the applied electric field, and the positive charge deposited on the tube wall forms a radial self built electric field, the strong radial electric field formed by the superposition of the two causes the discharge to propagate in a hollow mode.
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