Im am trying to make a npc move with pathfinding service, but it wont move, any know why?

The pathfinding service only works if the humanoid has somewhere to move to, and it seems like you tell the humanoid to move to what position, therefore the script doesn't know what the destination is. After your in pairs loop, add a human:MoveTo(point.Position) and it should work.

local dummy = game.Workspace.Dummy:WaitForChild("HumanoidRootPart")
local human = dummy:WaitForChild("Humanoid")
local point = game.Workspace.Part1
local PathfindingService = game:GetService("PathfindingService")
local path = PathfindingService:CreatePath()
path:ComputeAsync(dummy.HumanoidRootPart.Position, point.Position)
local waypoints = path:GetWaypoints()

for _, waypoint in pairs(waypoints) do
    local part = Instance.new("Part")
    part.Shape = "Ball"
    part.Material = "Neon"
    part.Size = Vector3.new(0.6, 0.6, 0.6)
    part.Position = waypoint.Position
    part.Anchored = true
    part.CanCollide = false
    part.Parent = game.Workspace

    human:MoveTo(waypoint.Position)
    human.MoveToFinished:Wait()
end

human:MoveTo(point.Position)