Since 2004, the ongoing observation of the galactic plane by the H.E.S.S telescope, thanks to its high sensitivity, has yielded the discovery of more than 50 sources, of which a major part are pulsar wind nebulae (PWN). The observational characteristics of those objects can be divided into two sub-classes : the compact and centre-filled sources, mainly associated with young pulsars, and the middle aged ones, which present an extended and offset nebulae. The very high energy emission from PWNe gives another point of view on the underlying electron population injected by the pulsar, and gives access to an estimation of the magnetic field, and also, thanks to the longer life time of the electrons emitting in the TeV domain, to the history of the injection. Multiwavelength observations, from radio to X-rays and in the MeV-GeV band through Fermi, provide precious data for a better understanding of the PWN. They also allow to unveil the nature of some TeV unidentified source, through the discovery of energetic pulsars, increasing thereby the PWN sample for population studies. In this presentation, we will focus on the latest H.E.S.S results on PWNe, and discuss their implications within the multiwavelength context.