The invention belongs to the technical field of radiation detection, and relates to a scintillation probe for measuring H<.>'(3) and a detector comprising the same. The scintillation probe comprises an incident window, a plastic scintillator, a backscattering body, a photomultiplier and a charge-sensitive preamplifier which are sequentially connected and arranged, wherein the incident window is used for keeping out of the light and reflecting scintillation photons generated by the plastic scintillator so as to increase the collection efficiency of the photomultiplier and the charge-sensitive preamplifier for the scintillation photons; the backscattering body is used for preventing a backscattering effect of beta rays and well transmitting fluorescent light generated by the plastic scintillator to a photocathode of the photomultiplier; and the photomultiplier and the charge-sensitive preamplifier are used for measuring and outputting signals generated by radiating particles in the plastic scintillator. The scintillation detector comprising the scintillation probe can be used for accurately measuring the H<.>'(3), and solves a technical problem that there is no instrument for measuring the H<.>'(3).